Advertisement
| what is cotransport: Transport And Diffusion Across Cell Membranes Wilfred Stein, 2012-12-02 Transport and Diffusion across Cell Membranes is a comprehensive treatment of the transport and diffusion of molecules and ions across cell membranes. This book shows that the same kinetic equations (with appropriate modification) can describe all the specialized membrane transport systems: the pores, the carriers, and the two classes of pumps. The kinetic formalism is developed step by step and the features that make a system effective in carrying out its biological role are highlighted. This book is organized into six chapters and begins with an introduction to the structure and dynamics of cell membranes, followed by a discussion on how the membrane acts as a barrier to the transmembrane diffusion of molecules and ions. The following chapters focus on the role of the membrane's protein components in facilitating transmembrane diffusion of specific molecules and ions, measurements of diffusion through pores and the kinetics of diffusion, and the structure of such pores and their biological regulation. This book methodically introduces the reader to the carriers of cell membranes, the kinetics of facilitated diffusion, and cotransport systems. The primary active transport systems are considered, emphasizing the pumping of an ion (sodium, potassium, calcium, or proton) against its electrochemical gradient during the coupled progress of a chemical reaction while a conformational change of the pump enzyme takes place. This book is of interest to advanced undergraduate students, as well as to graduate students and researchers in biochemistry, physiology, pharmacology, and biophysics. |
| what is cotransport: Molecular Biology of the Cell , 2002 |
| what is cotransport: Physiology and Pathology of Chloride Transporters and Channels in the Nervous System F. Javier Alvarez-Leefmans, Eric Delpire, 2009-08-22 The importance of chloride ions in cell physiology has not been fully recognized until recently, in spite of the fact that chloride (Cl-), together with bicarbonate, is the most abundant free anion in animal cells, and performs or determines fundamental biological functions in all tissues. For many years it was thought that Cl- was distributed in thermodynamic equilibrium across the plasma membrane of most cells. Research carried out during the last couple of decades has led to a dramatic change in this simplistic view. We now know that most animal cells, neurons included, exhibit a non-equilibrium distribution of Cl- across their plasma membranes. Over the last 10 to 15 years, with the growth of molecular biology and the advent of new optical methods, an enormous amount of exciting new information has become available on the molecular structure and function of Cl- channels and carriers. In nerve cells, Cl- channels and carriers play key functional roles in GABA- and glycine-mediated synaptic inhibition, neuronal growth and development, extracellular potassium scavenging, sensory-transduction, neurotransmitter uptake and cell volume control. Disruption of Cl- homeostasis in neurons underlies pathological conditions such as epilepsy, deafness, imbalance, brain edema and ischemia, pain and neurogenic inflammation. This book is about how chloride ions are regulated and how they cross the plasma membrane of neurons. It spans from molecular structure and function of carriers and channels involved in Cl- transport to their role in various diseases. The first comprehensive book on the structure, molecular biology, cell physiology, and role in diseases of chloride transporters / channels in the nervous system in almost 20 years Chloride is the most abundant free anion in animal cells. THis book summarizes and integrates for the first time the important research of the past two decades that has shown that Cl- channels and carriers play key functional roles in GABA- and glycine-mediated synaptic inhibition, neuronal growth and development, extracellular potassium scavenging, sensory-transduction, neurotransmitter uptake and cell volume control The first book that systematically discusses the result of disruption of Cl- homeostasis in neurons which underlies pathological conditions such as epilepsy, deafness, imbalance, brain edema and ischemia, pain and neurogenic inflammation Spanning topics from molecular structure and function of carriers and channels involved in Cl- transport to their role in various diseases Involves all of the leading researchers in the field Includes an extensive introductory section that covers basic thermodynamic and kinetics aspects of Cl- transport, as well as current methods for studying Cl- regulation, spanning from fluorescent dyes in single cells to knock-out models to make the book available for a growing population of graduate students and postdocs entering the field |
| what is cotransport: Red Cell Membrane Transport in Health and Disease Ingolf Bernhardt, J. Clive Ellory, 2013-04-17 The red cell has been a focus for scientific and medical investigation since the ear liest times. A higher erythrocyte sedimentation rate was associated with diseases (usually pyrexias) before the thermometer was invented. Furthermore, ever since the early observers Swammerdam and Leeuvenhoek saw discrete corpuscles in samples of blood using the first microscopes, there has been a significant scientific interest in the structure and function of red blood cells. The later discovery that red cells were not spherical, but biconcave discs introduced a scientific puzzle which is still not completely resolved today, and identified the need for a detailed knowledge of the plasma membrane composition and structure, and its interaction with the cytoskeleton. Important concepts like the lipid bilayer, together with its more recent refinement as asymmetric in phospholipid composition led to the identification of translocases involved in actively maintaining its composition. Understanding the mechanics of red cell deformation as these biconcave discs traverse capillaries was advanced by the pioneering work of Rand and Burton in the Sixties, and progressed by Evans, Skalak and others. Based on the bilayer couple hypothesis, the shape changes that are possible for a human red cell from echinocyte to stomatocyte were described by Sheetz and Singer in the Seventies in terms of alterations in the individual halves of the bilayer. Certain clinical condi tions are associated with obvious changes in red cell morphology. |
| what is cotransport: Cellular Migration and Formation of Neuronal Connections , 2013-05-06 The genetic, molecular, and cellular mechanisms of neural development are essential for understanding evolution and disorders of neural systems. Recent advances in genetic, molecular, and cell biological methods have generated a massive increase in new information, but there is a paucity of comprehensive and up-to-date syntheses, references, and historical perspectives on this important subject. The Comprehensive Developmental Neuroscience series is designed to fill this gap, offering the most thorough coverage of this field on the market today and addressing all aspects of how the nervous system and its components develop. Particular attention is paid to the effects of abnormal development and on new psychiatric/neurological treatments being developed based on our increased understanding of developmental mechanisms. Each volume in the series consists of review style articles that average 15-20pp and feature numerous illustrations and full references. Volume 2 offers 56 high level articles devoted mainly to Formation of Axons and Dendrites, Migration, Synaptogenesis, Developmental Sequences in the Maturation of Intrinsic and Synapse Driven Patterns. - Series offers 144 articles for 2904 full color pages addressing ways in which the nervous system and its components develop - Features leading experts in various subfields as Section Editors and article Authors - All articles peer reviewed by Section Editors to ensure accuracy, thoroughness, and scholarship - Volume 2 sections include coverage of mechanisms which regulate: the formation of axons and dendrites, cell migration, synapse formation and maintenance during development, and neural activity, from cell-intrinsic maturation to early correlated patterns of activity |
| what is cotransport: Channels, Carriers, and Pumps Wilfred D. Stein, 2012-12-02 For students as well as researchers this book describes the exciting new advances in the molecular biology of transport proteins and integrates this information with transport kinetics, function, and regulation. Experimental data are linked with theory. - Provides an introduction to the properties of transport proteins: channels, carriers, and pumps - Presents up-to-date information on the structure of transport proteins and on their function and regulation - Includes introductions to transport kinetics and to the cloning of genes that code transport proteins - Furnishes a link between the experimental basis of the subject and theoretical model building |
| what is cotransport: Cell Volume Regulation F. Lang, Claudio Ronco, 1998-07 This volume presents a unique compilation of reviews on cell volume regulation in health and disease, with contributions from leading experts in the field. The topics covered include mechanisms and signaling of cell volume regulation and the effect of cell volume on cell function, with special emphasis on ion channels and transporters, kinases and gene expression. Several chapters elaborate on how cell volume regulatory mechanisms participate in the regulation of epithelial transport, urinary concentration, metabolism, migration, cell proliferation and apoptosis. Last but not least, this publication is an excellent guide to the role of cell volume in the pathophysiology of hypercatabolism, diabetes mellitus, brain edema, hemoglobinopathies, tumor growth and metastasis, to name just a few. Providing deeper insights into an exciting area of research which is also of clinical relevance, this publication is a valuable addition to the library of those interested in cell volume regulation. |
| what is cotransport: Exocytosis and Endocytosis Andrei I. Ivanov, 2008 In this book, skilled experts provide the most up-to-date, step-by-step laboratory protocols for examining molecular machinery and biological functions of exocytosis and endocytosis in vitro and in vivo. The book is insightful to both newcomers and seasoned professionals. It offers a unique and highly practical guide to versatile laboratory tools developed to study various aspects of intracellular vesicle trafficking in simple model systems and living organisms. |
| what is cotransport: Ion Channels and Transporters of Epithelia in Health and Disease Kirk L. Hamilton, Daniel C Devor, 2015-12-14 This book sheds new light on the physiology, molecular biology and pathophysiology of epithelial ion channels and transporters. It combines the basic cellular models and functions by means of a compelling clinical perspective, addressing aspects from the laboratory bench to the bedside. The individual chapters, written by leading scientists and clinicians, explore specific ion channels and transporters located in the epithelial tissues of the kidney, intestine, pancreas and respiratory tract, all of which play a crucial part in maintaining homeostasis. Further topics include the fundamentals of epithelial transport; mathematical modeling of ion transport; cell volume regulation; membrane protein folding and trafficking; transepithelial transport functions; and lastly, a discussion of transport proteins as potential pharmacological targets with a focus on the pharmacology of potassium channels. |
| what is cotransport: Ionic Channels of Excitable Membranes Bertil Hille, 1992 This new, fully revised and expanded edition of Ionic Channels of Excitable Membranes includes new chapters on fast chemical synapses, modulation through G protein coupled receptors and second messenger systems, molecules cloning, site directed mutagenesis, and cell biology. It begins with the classical biophysical work of Hodgkin and Huxley and then weaves a description of the known ionic channels together with their biological functions. The book continues by developing the physical and molecular principles needed for explaining permeation, gating, pharmacological modification, and molecular diversity, and ends with a discussion of channel evolution. Ionic Channels of Excitable Membranes is written to be accessible and interesting to biological and physical scientists of all kinds. |
| what is cotransport: Role of the Choroid Plexus in Health and Disease Jeppe Praetorius, Bonnie Blazer-Yost, Helle Damkier, 2020-04-17 This book highlights the importance of the choroid plexus, which forms the blood-cerebrospinal fluid barrier and is the site of the major production of the cerebrospinal fluid (CSF). The authors show that this barrier is crucial for maintaining important compositional differences between the blood plasma and the CSF. The choroid plexus epithelial cells also prevent the spread of infectious agents and other blood-borne entities to the brain tissue. Chapter topics range from the production of CSF by electrolyte regulation in the choroid plexus, to details on the selectively transporting nature of this barrier. Further, the authors elaborate on the important roles of CSF in sustaining brain health by providing hydration, solutes, and nutrients to the brain tissue. Readers will also learn how CSF circulates signaling molecules within the compartments of the brain and removes waste products from the brain tissue. Elucidating the regulation of these processes in the choroid plexus is not only important for the readers’ understanding of normal brain development and function, but is also crucial for resolving a variety of cerebral challenges that lead to brain edema, as well as developing treatments for diseases. The book discusses disease models like hydrocephalus, sleep disorders, and age-related dementia. Its comprehensive coverage makes this volume a valuable resource for researchers in cell and neurophysiology, as well as graduate students of the neurosciences. |
| what is cotransport: Encyclopedia of Signaling Molecules Sangdun Choi, 2017-12-15 The second edition of this encyclopedia presents over 400 biologically important signaling molecules and the content is built on the core concepts of their functions along with early findings written by some of the world’s foremost experts. The molecules are described by recognized leaders in each molecule. The interactions of these single molecules in signal transduction networks will also be explored. This encyclopedia marks a new era in overview of current cellular signaling molecules for the specialist and the interested non-specialist alike. Currently, there are more than 30,000 genes in human genome. However, not all the proteins encoded by these genes work equally in order to maintain homeostasis. Understanding the important signaling molecules as completely as possible will significantly improve our research-based teaching and scientific capabilities. |
| what is cotransport: Chloride Movements Across Cellular Membranes , 2007-01-22 All living cells are surrounded by a lipidic membrane that isolates them from the often harsh environment. However, to take up nutrients, to excrete waste, and to communicate among each other, Nature has invented an incredibly diverse set of transmembrane transport proteins. Specialized transporters exist to shuttle electrically charged ions, positive cations like sodium or negative anions like chloride, across the membrane. In the recent years, tremendous progress has been made in the field of chloride transport. The present book presents the state of the art of this rapidly expanding and interest-gaining field of membrane transport. It is addressed at a broad medically, physiologically, biologically, and biophysically interested readership. Describes the state-of-the-art in anion transport research Written by leaders in the field Presents a timely discussion of this rapidly emerging and expanding field |
| what is cotransport: Solute Transport in Plants T.J. Flowers, A.R. Yeo, 2012-12-06 The study of solute transport in plants dates back to the beginnings of experimental plant physiology, but has its origins in the much earlier interests of humankind in agriculture. Given this lineage, it is not surprising that there have been many books on the transport of solutes in plants; texts on the closely related subject of mineral nutrition also commonly address the topic of ion transport. Why another book? Well, physiologists continue to make new discoveries. Particularly pertinent is the characterisation of enzymes that are able to transport protons across membranes during the hydrolysis of energy-rich bonds. These enzymes, which include the H + -A TPases, are now known to be crucial for solute transport in plants and we have given them due emphasis. From an academic point of view, the transport systems in plants are now appreciated as worthy of study in their own right-not just as an extension of those systems already much more widely investigated in animals. From a wider perspective, understanding solute transport in plants is fundamental to understanding plants and the extent to which they can be manipulated for agricultural purposes. As physiologists interested in the mechanisms of transport, we first set out in this book to examine the solutes in plants and where are they located. Our next consideration was to provide the tools by which solute movement can be understood: a vital part of this was to describe membranes and those enzymes catalysing transport. |
| what is cotransport: The Exocrine Pancreas Stephen Pandol, 2011 The secretions of the exocrine pancreas provide for digestion of a meal into components that are then available for processing and absorption by the intestinal epithelium. Without the exocrine pancreas, malabsorption and malnutrition result. This chapter describes the cellular participants responsible for the secretion of digestive enzymes and fluid that in combination provide a pancreatic secretion that accomplishes the digestive functions of the gland. Key cellular participants, the acinar cell and the duct cell, are responsible for digestive enzyme and fluid secretion, respectively, of the exocrine pancreas. This chapter describes the neurohumoral pathways that mediate the pancreatic response to a meal as well as details of the cellular mechanisms that are necessary for the organ responses, including protein synthesis and transport and ion transports, and the regulation of these responses by intracellular signaling systems. Examples of pancreatic diseases resulting from dysfunction in cellular mechanisms provide emphasis of the importance of the normal physiologic mechanisms. |
| what is cotransport: Transport in Biological Media Sid M. Becker, Andrey V. Kuznetsov, 2013-05-21 Transport in Biological Media is a solid resource of mathematical models for researchers across a broad range of scientific and engineering problems such as the effects of drug delivery, chemotherapy, or insulin intake to interpret transport experiments in areas of cutting edge biological research. A wide range of emerging theoretical and experimental mathematical methodologies are offered by biological topic to appeal to individual researchers to assist them in solving problems in their specific area of research. Researchers in biology, biophysics, biomathematics, chemistry, engineers and clinical fields specific to transport modeling will find this resource indispensible. - Provides detailed mathematical model development to interpret experiments and provides current modeling practices - Provides a wide range of biological and clinical applications - Includes physiological descriptions of models |
| what is cotransport: Cell Physiology Sourcebook Nicholas Sperelakis, 2001-05-15 This completely revised and updated source book provides comprehensive and authoritative coverage of cell physiology and membrane biophysics. Intended primarily as a text for advanced undergraduate and graduate students and as a reference for researchers, this multidisciplinary book includes several new chapters and is an invaluable aid to scientists interested in cell physiology, biophysics, cell biology, electrophysiology, and cell signaling.* Includes broad coverage of both animal and plant cells * Appendices review basics of the propagation of action potentials, electricity, and cable properties |
| what is cotransport: Thyroid Hormone Metabolism Georg Hennemann, 1986 |
| what is cotransport: Renaissance of Sickle Cell Disease Research in the Genome Era Betty Pace, 2007 The Human Genome Project has spawned a Renaissance of research faced with the daunting expectation of personalized medicine for individuals with sickle cell disease in the Genome Era. This book offers a comprehensive and timeless account of emerging concepts in clinical and basic science research, and community concerns of health disparity to educate professionals, students and the general public about meeting this challenging expectation. Contributions from physicians, research scientists, scientific administrators and community workers make Renaissance of Sickle Cell Disease Research in the Genome Era unique among the catalogue of books on this genetic disorder.Part 1 offers detailed review of the National Heart Lung and Blood Institute's leadership role in funding sickle cell research, as well as developing progressive research initiatives and the predicted impact of the Human Genome Project. Part 2 gives an account of several clinical research perspectives based on the Cooperative Study of Sickle Cell Disease. These include recommendations for newborn screening, pain management, stroke, transfusion therapy and pediatric and adult healthcare. Part 3 offers novel insights into basic science research progress and the impact of the Human Genome Project on the direction of hemoglobinopathy research, including hemoglobin switching, bone marrow transplantation and gene therapy. Part 4 engages the reader in a culture-based discussion of the stigma attached to sickle cell disease in the African American community and the apprehensions about genetic research in this community. It concludes with a global perspective on sickle cell disease from African, European and American experiences. For readers seeking a definitive account of sickle cell disease appropriate for students, researchers and community workers, this collaborative effort is an ideal textbook. |
| what is cotransport: An Introduction to Biological Membranes William Stillwell, 2013-04-20 An Introduction to Biological Membranes: From Bilayers to Rafts covers many aspects of membrane structure/function that bridges membrane biophysics and cell biology. Offering cohesive, foundational information, this publication is valuable for advanced undergraduate students, graduate students and membranologists who seek a broad overview of membrane science. - Brings together different facets of membrane research in a universally understandable manner - Emphasis on the historical development of the field - Topics include membrane sugars, membrane models, membrane isolation methods, and membrane transport |
| what is cotransport: Cellular Endocrinology in Health and Disease Alfredo Ulloa-Aguirre, Ya-Xiong Tao, 2021-02-05 Cellular Endocrinology in Health and Disease, Second Edition, describes the underlying basis of endocrine function, providing an important tool to understand the fundamentals of endocrine diseases. Delivering a comprehensive review of the basic science of endocrinology, from cell biology to human disease, this work explores and dissects the function of a number of cellular systems. The new edition provides an understanding of how endocrine glands function by integrating information resulting in biological effects on both local and systemic levels, also providing new information on the molecular physiopathogenesis of endocrine neoplasic cells. The new edition expands the most used chapters from the first edition and proposes a series of substitutions and additions to the table of contents. New chapters cover signaling, brown adipose tissue, hypothalamic cell models, cellular basis of insulin resistance, genetics and epigenetics of neuroendocrine tumors, and a series of chapters on endocrine-related cancer. Providing content that crosses disciplines, Cellular Endocrinology in Health and Disease, Second Edition, details how cellular endocrine function contributes to system physiology and mediates endocrine disorders. A methods section proves novel and useful approaches across research focus that will be attractive to medical students, residents, and specialists in the field of endocrinology, as well as to those interested in cellular regulation. Editors Alfredo Ulloa-Aguirre and Ya-Xiong Tao, experts in molecular and cellular aspects of endocrinology, deliver contributions carefully selected for relevance, impact, and clarity of expression from leading field experts |
| what is cotransport: Transport Organs G. Giebisch, 1979 With contributions by numerous experts |
| what is cotransport: Neuroscience in the 21st Century Donald W. Pfaff, Nora D. Volkow, 2016-10-27 Edited and authored by a wealth of international experts in neuroscience and related disciplines, this key new resource aims to offer medical students and graduate researchers around the world a comprehensive introduction and overview of modern neuroscience. Neuroscience research is certain to prove a vital element in combating mental illness in its various incarnations, a strategic battleground in the future of medicine, as the prevalence of mental disorders is becoming better understood each year. Hundreds of millions of people worldwide are affected by mental, behavioral, neurological and substance use disorders. The World Health Organization estimated in 2002 that 154 million people globally suffer from depression and 25 million people from schizophrenia; 91 million people are affected by alcohol use disorders and 15 million by drug use disorders. A more recent WHO report shows that 50 million people suffer from epilepsy and 24 million from Alzheimer’s and other dementias. Because neuroscience takes the etiology of disease—the complex interplay between biological, psychological, and sociocultural factors—as its object of inquiry, it is increasingly valuable in understanding an array of medical conditions. A recent report by the United States’ Surgeon General cites several such diseases: schizophrenia, bipolar disorder, early-onset depression, autism, attention deficit/ hyperactivity disorder, anorexia nervosa, and panic disorder, among many others. Not only is this volume a boon to those wishing to understand the future of neuroscience, it also aims to encourage the initiation of neuroscience programs in developing countries, featuring as it does an appendix full of advice on how to develop such programs. With broad coverage of both basic science and clinical issues, comprising around 150 chapters from a diversity of international authors and including complementary video components, Neuroscience in the 21st Century in its second edition serves as a comprehensive resource to students and researchers alike. |
| what is cotransport: Membrane Transport in Plants U. Zimmermann, J. Dainty, 2012-12-06 In February, 1974, an 'International Workshop on Membrane Transport in Plants' was held at the Nuclear Research Centre, JLiI ich, West Germany. More than two hundred and fifty people, from fourteen countries, took part in this highly successful meeting. A somewhat similar meeting took place in Liverpool, England, two years ago and it became clear there that progress in the field of membrane transport in plants was now so marked that a second, and wider, meeting in Germany was more than fully justified. The members of our pro gramme committee (U. Zimmermann, Chairman, JLilich (FRG); J. Dainty, |
| what is cotransport: Liquid Membranes Vladimir S Kislik, 2009-08-31 Liquid Membranes: Principles and Applications in Chemical Separations and Wastewater Treatment discusses the principles and applications of the liquid membrane (LM) separation processes in organic and inorganic chemistry, analytical chemistry, biochemistry, biomedical engineering, gas separation, and wastewater treatment. It presents updated, useful, and systematized information on new LM separation technologies, along with new developments in the field. It provides an overview of LMs and LM processes, and it examines the mechanisms and kinetics of carrier-facilitated transport through LMs. It also discusses active transport, driven by oxidation-reduction, catalytic, and bioconversion reactions on the LM interfaces; modifications of supported LMs; bulk aqueous hybrid LM processes with water-soluble carriers; emulsion LMs and their applications; and progress in LM science and engineering. This book will be of value to students and young researchers who are new to separation science and technology, as well as to scientists and engineers involved in the research and development of separation technologies, LM separations, and membrane reactors. - Provides comprehensive knowledge-based information on the principles and applications of a variety of liquid membrane separation processes - Contains a critical analysis of new technologies published in the last 15 years |
| what is cotransport: Biofluid Mechanics Wei Yin, Mary D. Frame, 2011-11-02 Both broad and deep in coverage, Rubenstein shows that fluid mechanics principles can be applied not only to blood circulation, but also to air flow through the lungs, joint lubrication, intraocular fluid movement and renal transport. Each section initiates discussion with governing equations, derives the state equations and then shows examples of their usage. Clinical applications, extensive worked examples, and numerous end of chapter problems clearly show the applications of fluid mechanics to biomedical engineering situations. A section on experimental techniques provides a springboard for future research efforts in the subject area. - Uses language and math that is appropriate and conducive for undergraduate learning, containing many worked examples and end of chapter problems - All engineering concepts and equations are developed within a biological context - Covers topics in the traditional biofluids curriculum, as well as addressing other systems in the body that can be described by biofluid mechanics principles, such as air flow through the lungs, joint lubrication, intraocular fluid movement, and renal transport - Clinical applications are discussed throughout the book, providing practical applications for the concepts discussed. |
| what is cotransport: Membrane Structure , 1981-01-01 Membrane Structure |
| what is cotransport: Blood Glucose Levels Leszek Szablewski, 2020-01-08 The main source of energy for the body is glucose. Its low blood concentrations can cause seizures, loss of consciousness and death. Long lasting high glucose levels can cause blindness, renal failure, cardiac and peripheral vascular disease, and neuropathy. Blood glucose concentrations need to be maintained within narrow limits. The process of maintaining blood glucose at a steady state is called glucose homeostasis. This is achieved through a balance of the rate of consumption of dietary carbohydrates, utilization of glucose by peripheral tissues, and the loss of glucose through the kidney tubule. The liver and kidney also play a role in glucose homeostasis. This book aims to provide an overview of blood glucose levels in health and diseases. |
| what is cotransport: Cell Boundaries John Stephen White, Gunnar Von Heijne, Donald M. Engelman, 2022 The central themes of Cell Boundaries concern the structural and organizational principles underlying cell membranes, and how these principles enable function. By building a biological and biophysical foundation for understanding the organization of lipids in bilayers and the folding, assembly, stability, and function of membrane proteins, the book aims to broaden the knowledge of bioscience students to include the basic physics and physical chemistry that inform us about membranes. In doing so, it is also hoped that physics students will find familiar territory that will lead them to an interest in biology. Our progress toward understanding membranes and membrane proteins depends strongly upon the concerted use of both biology and physics. It is important for students to know not only what we know, but how we have come to know it, so Cell Boundaries endeavors to bring out the history behind the central discoveries, especially in the early chapters where the foundation is laid for later chapters. Science is far more interesting if, as students, we can appreciate and share in the adventures--and misadventures--of discovering new scientific knowledge. Cell Boundaries was written with advanced undergraduates and beginning graduate students in the biological and physical sciences in mind, though this textbook will likely have appeal to researchers and other academics as well. |
| what is cotransport: Tissue Engineering Using Ceramics and Polymers Aldo R. Boccaccini, J Gough, 2007-10-31 Technology and research in the field of tissue engineering has drastically increased within the last few years to the extent that almost every tissue and organ of the human body could potentially be regenerated. With its distinguished editors and international team of contributors, Tissue Engineering using Ceramics and Polymers reviews the latest research and advances in this thriving area and how they can be used to develop treatments for disease states. Part one discusses general issues such as ceramic and polymeric biomaterials, scaffolds, transplantation of engineered cells, surface modification and drug delivery. Later chapters review characterisation using x-ray photoelectron spectroscopy and secondary ion mass spectrometry as well as environmental scanning electron microscopy and Raman micro-spectroscopy. Chapters in part two analyse bone regeneration and specific types of tissue engineering and repair such as cardiac, intervertebral disc, skin, kidney and bladder tissue. The book concludes with the coverage of themes such as nerve bioengineering and the micromechanics of hydroxyapatite-based biomaterials and tissue scaffolds. Tissue Engineering using Ceramics and Polymers is an innovative reference for professionals and academics involved in the field of tissue engineering. - An innovative and up-to-date reference for professionals and academics - Environmental scanning electron microscopy is discussed - Analyses bone regeneration and specific types of tisue engineering |
| what is cotransport: Basic Concepts in Biochemistry Hiram F. Gilbert, 1992 A new addition to the PreTest product line, this review book covers only those topics in biochemistry which, through the author's experience, market research and in-depth reviewing were viewed by medical students as being most difficult to comprehend. The text is organized by general concepts, which are then subdivided in order of increasing complexity. Each section begins with a short summary of key points. The book's unique approach stresses the mastering of fundamental concepts instead of just the memorization of facts. Thus the student is encouraged to reason through problems, and to better retain what he/she learns in the course. This text can be used in concert with the sixth edition of PreTest Biochemistry to form an excellent review source for students taking biochemistry exams or Part I of the National Board Exam. |
| what is cotransport: Current Topics in Membranes , 1992-01-08 Current Topics in Membranes |
| what is cotransport: Co-Transport Systems , 2012-12-31 Current Topics in Membranes is targeted towards scientists and researchers in biochemistry and molecular and cellular biology, providing the necessary membrane research to assist them in discovering the current state of a particular field and in learning where that field is heading. In this volume, researchers are encouraged to fully explore topics and research related to co-transport systems. The authors and editors associated with the Current Topics in Membranes series are recognized as world-renowned scientists in their respective fields, making CTM one of the premier serials on membranes. - Field is cutting-edge and a lot of the information is new to research community - Wide breadth of topic coverage - Contributors of high renown and expertise |
| what is cotransport: Lysosomes Pooja Dhiman, 2017-08-30 This book covers current advances in disorders associated with lysosomal function along with techniques to study its function. All chapters are complete in themselves but united under a common research study topic. This publication aims at providing a thorough overview of the latest research efforts by international authors on lysosomal diseases and opens new possible research paths. |
| what is cotransport: AP Biology Study Guide AP Biology Study Guide Sundar Nathan, 2009-11 Sundar Nathan received a Bachelor's degree in Electrical Engineering from Anna University, Chennai, India and a Masters degree in Biomedical Engineering from the University of Texas at Austin. Working for over a year with a team of talented Phds, MPhils and MScs from all over the world, Sundar compiled this comprehensive study guide to help students prepare diligently, understand the concepts and Crush the AP Bio Test! |
| what is cotransport: The Plant Plasma Membrane Angus S. Murphy, Wendy Peer, Burkhard Schulz, 2010-11-11 In plant cells, the plasma membrane is a highly elaborated structure that functions as the point of exchange with adjoining cells, cell walls and the external environment. Transactions at the plasma membrane include uptake of water and essential mineral nutrients, gas exchange, movement of metabolites, transport and perception of signaling molecules, and initial responses to external biota. Selective transporters control the rates and direction of small molecule movement across the membrane barrier and manipulate the turgor that maintains plant form and drives plant cell expansion. The plasma membrane provides an environment in which molecular and macromolecular interactions are enhanced by the clustering of proteins in oligimeric complexes for more efficient retention of biosynthetic intermediates, and by the anchoring of protein complexes to promote regulatory interactions. The coupling of signal perception at the membrane surface with intracellular second messengers also involves transduction across the plasma membrane. Finally, the generation and ordering of the external cell walls involves processes mediated at the plant cell surface by the plasma membrane. This volume is divided into three sections. The first section describes the basic mechanisms that regulate all plasma membrane functions. The second describes plasma membrane transport activity. The final section of the book describes signaling interactions at the plasma membrane. These topics are given a unique treatment in this volume, as the discussions are restricted to the plasma membrane itself as much as possible. A more complete knowledge of the plasma membrane’s structure and function is essential to current efforts to increase the sustainability of agricultural production of food, fiber, and fuel crops. |
| what is cotransport: Cell Membrane Transport Arnost Kotyk, 2012-12-06 TO THE SECOND EDITION When preparing the manuscript for the original edition of this book we were only partly aware of the pace at which the field of membrane transport was developing and at which new ideas as well as new techniques would be applied to it. The fact is that some of the chapters are now outdated (e. g. , the one on the molecular aspects of transport) and many others require revision in the light of new information that has appeared in the past five years. However, it is also true that we overemphasized in the first edition certain points that now appear less important and underestimated the impact of certain others that have since assumed a position among the most forcefully discussed topics of membrane research. In making amends, it was thus thought useful to include the discussion of these latter problems both in the theoretical and in the comparative sections and, on the other hand, to omit some of the less topical subjects. There was a different reason for rewriting the section on kidney and for dropping the section on mito chondria. The help of an expert nephrologist was enlisted for improving chapter 24, while it was decided that mitochondria represent a special field both conceptually (being only subcellular particles) and methodologically (more indirect estimation techniques being involved than with whole cells or tissues) and that more adequate information can be found in treatises specializing in work with mitochondria. |
| what is cotransport: Key Heterocycle Cores for Designing Multitargeting Molecules Om Silakari, 2018-06-11 Key Heterocycle Cores for Designing Multitargeting Molecules provides a helpful overview of current developments in the field. Following a detailed introduction to the manipulation of heterocycle cores for the development of dual or multitargeting molecules, the book goes on to describe specific examples of such developments, focusing on compounds such as Benzimidazole, Acridine, Flavones, Thiazolidinedione and Oxazoline. Drawing on the latest developments in the field, this volume provides a valuable guide to current approaches in the design and development of molecules capable of acting on multiple targets. Adapting the heterocyclic core of a single-target molecule can facilitate its development into an agent capable of acting on multiple targets. Such multi-targeting drugs have the potential to become essential components in the design of novel, holistic treatment plans for complex diseases, making the design of such active agents an increasingly important area of research. - Emphasizes the chemical development of heterocyclic nuclei, from single to multitargeting molecules - Provides chapter-by-chapter coverage of the key heterocyclic compounds used in synthesizing multitargeting agents - Outlines current trends and future developments in multitarget molecule design for the treatment of various diseases |
| what is cotransport: Basics of Medical Physiology for Nursing Students HH Sudhakar D Venkatesh, 2019-08-01 This book explains the basic concepts of medical physiology in a clear and concise style. The fifth edition presents revised and updated text with numerous new diagrams. The applied physiology aspect has been suitably emphasized. |
| what is cotransport: Radionuclide Behaviour in the Natural Environment: Science, Implications and Lessons for the Nuclear Industry Christophe Poinssot, Horst Geckeis, 2017-11-13 Understanding radionuclide behaviour in the natural environment is essential to the sustainable development of the nuclear industry and key to assessing potential environmental risks reliably. Minimising those risks is essential to enhancing public confidence in nuclear technology. Scientific knowledge in this field has developed greatly over the last decade.Radionuclide behaviour in the natural environment provides a comprehensive overview of the key processes and parameters affecting radionuclide mobility and migration. After an introductory chapter, part one explores radionuclide chemistry in the natural environment, including aquatic chemistry and the impact of natural organic matter and microorganisms. Part two discusses the migration and radioecological behavior of radionuclides. Topics include hydrogeology, sorption and colloidal reactions as well as in-situ investigations. Principles of modelling coupled geochemical, transport and radioecological properties are also discussed. Part three covers application issues: assessment of radionuclide behaviour in contaminated sites, taking Chernobyl as an example, estimation of radiological exposure to the population, performance assessment considerations related to deep geological repositories, and remediation concepts for contaminated sites. With its distinguished editors and international team of expert contributors, Radionuclide behaviour in the natural environment is an essential tool for all those interested or involved in nuclear energy, from researchers, designers and industrial operators to environmental scientists. It also provides a comprehensive guide for academics of all levels in this field. Provides a comprehensive overview of the key processes and parameters affecting radionuclide mobility and migration Explores radionuclide chemistry in the natural environment Discusses the migration and radioecological behaviour of radionuclides |
Megathyrsus M. Mombasa - Pastos Tropicales | Germisemillas
Megathyrsus M. Mombasa, guinea de porte alto, para suelos de buena fertilidad, utilizado en sistemas de silvopastoreo y corte. Es la guinea más usada en Colombia.
Ficha Técnica Pasto Guinea Mombasa (Panicum maximum cv. Mombasa)
Jun 2, 2021 · El Pasto Guinea Mombasa es Gramínea perenne originaria de áfrica. De crecimiento erecto, y en macollas que miden hasta 3 metros; hojas anchas, largas y toscas. …
Ficha tecnica Colsemillas SAS-Pasto Mombasa
Gramínea de ciclo vegetativo perenne y crecimiento entubado. Es un poco menos exigente en la fertilidad que la Tanzania-1, ya que tiene una mayor eficiencia en el uso de fósforo lábil en la …
MOMBASA RECUBIERTA GERMISEMILLAS KILO
La Mombasa Recubierta Germisemillas Kilo es una semilla de alta calidad, diseñada para optimizar la producción de forraje en diversas condiciones climáticas. Su recubrimiento …
Panicum maximum CV. MOMBASA - Agrosemillas
CARACTERISTICAS AGRONÓMICAS (TOLERANCIAS / SUCEPTIBILIDAD): El Pasto Mombasa es una planta cespitosa, llega a 1.65 m de altura, con hojas de 3 cm de ancho, son largas y se …
Fichas Tecnicas - S0272 - Semillas - Pasto - Mombaza - KG
El documento describe las especificaciones técnicas requeridas para la semilla de pasto Mombaza, incluyendo características de la planta, semilla y empaque, así como requisitos de …
SEMILLA GUINEA MOMBASA - Agroactivo
REVISA Y DESCARGA LA FICHA TÉCNICA DEL PRODUCTO: FT GUINEA MOMBASA. La semilla Guinea mombasa es de crecimiento erecto presenta altas tasas de rebrote, tolera el …
Fichatécnic - Germisemillas
Centro logístico e Industrial Qbox – Bod. 25 Ficha versión 6 actualizada en Octubre 2023
Ficha Tecnica Mombasa
Tecnología Advanced, es una tecnología que recubre la semilla con un polímero y Grafito, contiene dos Fungicidas e insecticida, inteligencia en absorción de agua, por lo que tiene un …
Semillas de Mombasa - Pasturas Tropicales | Semillas de pastos …
En cuánto tiempo germinan las semillas de Mombasa? Mombasa debe ser sembrada superficialmente, entre 1-2 cm. Con buena humedad en el suelo germinan entre 7-15 días.
How to Kayak: A Beginners Guide | REI Expert Advice
Learn how to kayak via the basics, including paddling techniques, methods for launching your kayak and essential equipment …
Kayaking 101: Ultimate Guide for Beginners | Paddle Camp
We’ll cover everything you need to get started, from the kayaking gear you’ll need to how to get back in your kayak if you flip over. So, stick with me, …
21 Beginner Kayaking Tips and Tricks for First-Timers
Jun 2, 2024 · These are our essential kayaking tips for beginners: from choosing the right kayak and gear to …
Kayaking for Beginners: What to Know Before You Go
In this guide to kayaking for beginners you'll learn the basics about kayaks, kayaking equipment, paddling technique & strokes, and safety.
How To Kayak: A Guide for Beginners - Go Wander Wild
Oct 16, 2024 · We’ll cover everything from essential safety to tips on kayaking for beginners, as well as everything …
