The aim of this book is to investigate the basic physical phenomena occurring in cells. These physical transport processes facilitate chemical reactions in the cell and that, in turn, leads to the biological functions necessary for the cell to satisfy its role in the mother organism. Ultimately, the goal of every cell is to stay alive and to fulfil its function as a part of a larger organ or organism. This first volume is an inventory of physical transport processes occurring in cells, while the second volume will take a closer look at how complex biological and physiological cell phenomena result from these very basic physical processes.
Author(s): Armin Kargol
Series: IOP Concise Physics
Publisher: IOP Publishing
Year: 2019
Language: English
Pages: 116
City: Bristol
PRELIMS.pdf
Preface
Author biography
Armin Kargol
CH001.pdf
Chapter 1 Introduction to cells
1.1 Cell structure and chemistry
1.1.1 The biology of a cell
1.1.2 Some molecules involved
1.1.3 The subject of cellular biophysics
1.2 Properties of cell membranes
1.2.1 Composition of cell membranes
1.2.2 The membrane as a dynamical structure
1.3 Membrane transport processes and their significance to cell functions
1.4 Experimental methods for membrane transport
References
CH002.pdf
Chapter 2 Permeation
2.1 Diffusion
2.1.1 Diffusion laws
2.1.2 Examples
2.1.3 Biological aspects of diffusion in cells
2.1.4 Microscopic model of diffusion
2.1.5 Diffusion in membranes
2.2 Water transport
2.2.1 Driving forces
2.2.2 Water flux equation
2.2.3 Two mechanisms for water transport in membranes, aquaporins
2.3 Concurrent water and solute transport
2.3.1 Solute and water flux equations
2.3.2 Thermodynamic derivation of the Kedem–Katchalsky equations
2.4 Derivatives
2.5 Differential equations
References
CH003.pdf
Chapter 3 Carrier-based transport
3.1 Basic characteristics
3.2 Carrier models
3.2.1 Transitional state theory
3.2.2 Stable configurational states and thermally activated transitions
3.2.3 Example I: four-state model of a uniport
3.2.4 Example II: A symport model
3.2.5 Example III: Competitive inhibition or inactivation
3.2.6 GLUT transporters
References
CH004.pdf
Chapter 4 Ion channels
4.1 Ions in solution
4.1.1 Properties of physiologically important ions
4.1.2 Electrodiffusion
4.1.3 Electrodiffusion in membranes, Nernst potential
4.1.4 Membrane resting potential
4.2 Experimental methods for ion permeation
4.2.1 The discovery of ion channels
4.2.2 Early electrophysiology
4.2.3 Patch clamping
4.2.4 DNA sequencing
4.2.5 Ion channel expression
4.2.6 Protein x-ray crystallography
4.2.7 FRET
4.3 Properties of ion channels
4.3.1 Ion channel selectivity
4.3.2 Channel gating
4.3.3 Physiological roles of ion channels
4.4 Mathematical models
4.4.1 Structural models
4.4.2 Functional models
4.5 Examples of ion channels
4.5.1 Voltage-gated potassium channels
4.5.2 Voltage-gated sodium channels
4.5.3 Ligand-gated channels
4.6 Discrete Markov models
Model diagrams
The time evolution of Markov models
References
CH005.pdf
Chapter 5 Active transport: ion pumps
5.1 Principles of active transport
5.1.1 Examples of ion pumps
5.1.2 Resting potential revisited
5.1.3 Example: Na+–K+ ATP-ase
References
CH006.pdf
Chapter 6 Endo- and exocytosis
References
