PHYSICS OF THE LIFE SCIENCES

Jay Newman

Table of Contents  

 

Chapter 1   Introduction                                                                                                        1

1.      Science, Physics and Biology                                                                              1

2.      Levels of Organization, Collective Behavior and Emergent Properties           3

3.      Two Examples of Biophysical Systems: the Single Cell E. coli Bacteria

            and the Human Heart                                                                                    7

4.      Plan of this Book                                                                                                  11

 

Chapter 2   The Stability and Structure of Matter                                                               14

1.      The Atomic Nature of Matter                                                                             14

2.      Mass, Density, and the Size of Atoms                                                                18

3.      Weight and Gravity                                                                                             23

4.      The Electric Force                                                                                               26

5.      The Stability of Matter: Atoms, Molecules, and Bulk Material                      31

6.      The Nuclear Forces                                                                                             37

7.      Energy                                                                                                                  39

Questions/Problems                                                                                                   43

 

Chapter 3   Newton’s Laws of Motion for a Particle Moving in One-Dimension              48

1.      Position, Velocity and Acceleration in One-Dimension                                     48

2.      Newton’s First Law of Motion                                                                            58

3.      Force in One-Dimension                                                                                      60

4.   Mass                                                                                                                     62

5.      Newton’s Second Law of Motion in One-Dimension                                         64

6.      Newton’s Third Law                                                                                            67

7.      Diffusion                                                                                                               70

Questions/Problems                                                                                                   73

 

Chapter 4   Applications of Newton’s Laws of Motion in One-Dimension                         83

1.      The Constant Force                                                                                             83

2.      Motion in a Viscous Fluid                                                                                    90

3.      Hooke’s Law and Oscillations                                                                            95

4.      Forces on Solids and their Elastic Response; Biomaterials                              103

            and Viscoelasticity

5.      Structure and Molecular Dynamics of Proteins                                                 112

Questions/Problems                                                                                                   119

 

Chapter 5   Work and Energy in One-Dimension                                                                126

1.      Work                                                                                                                     126

2.      Kinetic Energy and the Work-Energy Theorem                                                130

3.      Potential Energy and the Conservation of Energy                                             132

4.      Forces from Energy                                                                                             137

5.      Power                                                                                                                    143

Questions/Problems                                                                                                   146

 

Chapter 6   Motion, Forces and Energy in More than One-Dimension                             153

1.      Vector Algebra                                                                                                     153

2.      Kinematics                                                                                                           159

3.      Dynamics                                                                                                              164

4.      Work and Energy                                                                                                 168

5.      Contact Frictional Forces                                                                                    172

6.      Circular Motion Dynamics                                                                                  177

7.      Centrifugation                                                                                                      182

Questions/Problems                                                                                                   185

 

Chapter 7   Momentum                                                                                                         206

1.      Momentum                                                                                                           206

2.      Center of Mass                                                                                                    213

3.      Center of Mass Motion: Newton's Second Law and                                         219

            Conservation of Momentum

Questions/Problems                                                                                                   224

 

Chapter 8   Rotational Motion                                                                                              230

1.      Rotational Kinematics                                                                                         231

2.      Rotational Energy                                                                                                236

3.      Torque and Rotational Dynamics of a Rigid Body                                            244

4.      Angular Momentum                                                                                             253

5.      Atomic Force Microscopy                                                                                   258

6.      Rotational Diffusion; Cell Membrane Dynamics                                              261

7.      Static Equilibrium                                                                                                 265

Questions/Problems                                                                                                   270

           

Chapter 9   Ideal Fluids                                                                                                         287

1.      Introduction                                                                                                          287

2.      Pressure                                                                                                               289

3.      Dynamics of Non-Viscous Fluids: Types of Flow                                               293

4.      Conservation Laws of Fluid Dynamics                                                               296

5.      Hydrostatics: Effects of Gravity                                                                         304

6.      The Measurement of Pressure                                                                           310

Questions/Problems                                                                                                   313

 

Chapter 10   Viscous Fluids                                                                                                   321

1.      Viscosity of Simple Fluids                                                                                   321

2.      Blood and Other Complex Fluids                                                                        328

3.      The Human Circulatory System                                                                          330

4.      Surface Tension and Capillarity                                                                          335

Questions/Problems                                                                                                   341

 

Chapter 11   Waves and Resonance                                                                                     347

1.      Simple Harmonic Motion Revisited: Damping and Resonance                        347

2.      Wave Concepts                                                                                                    354

3.      Traveling Waves                                                                                                  356

4.      Waves at a Boundary: Interference                                                                   360

5.      Standing Waves and Resonance                                                                         363

Questions/Problems                                                                                                   368

Chapter 12   Sound                                                                                                                374

1.      Basics                                                                                                                   374

2.      Intensity of Sound                                                                                                378

3.      Superposition of Sound Waves                                                                           380

4.      Producing Sound                                                                                                  389

5.      The Human Ear: Physiology and Function                                                         393

6.      The Doppler Effect in Sound                                                                               400

7.      Ultrasound                                                                                                            403

Questions/Problems                                                                                                   409

 

Chapter 13   Temperature and Heat                                                                                     415

1.      Temperature and Thermal Equilibrium                                                              415

2.      Thermal Expansion and Stress                                                                           418

3.      Internal Energy and the Ideal Gas                                                                     424

4.      The First Law of Thermodynamics                                                                     429

5.      Thermal Properties of Matter                                                                             434

6.      Vapor and Osmotic Pressure; Membrane Transport and the Kidney              440

7.      Heat Transfer Mechanisms                                                                                446

Questions/Problems                                                                                                   452

                                                                                                                                               

Chapter 14   Thermodynamics: Beyond the First Law                                                        458

1.      Entropy and the Second Law of Thermodynamics                                             458

2.      Gibbs Free Energy                                                                                               466

3.      Biological Applications of Statistical Thermodynamics                                     472

Questions/Problems                                                                                                   478

Chapter 15   Electric Forces and Fields                                                                                482

1.      Electric Charge and Charge Conservation                                                         482

2.      Coulomb's Law                                                                                                     485

3.      Conductors and Insulators                                                                                  489

4.      Electric Fields                                                                                                      491

5.      Principles of Electrophoresis; Macromolecular Charges in Solution               501

6.      Modern Electrophoresis Methods                                                                      503

Questions/Problems                                                                                                   508

Chapter 16   Electric Energy and Potential                                                                          515

1.      Electric Potential Energy                                                                                     515

2.      Electric Potential                                                                                                  518

3.      Electric Dipoles and Charge Distributions                                                         522

4.      Atomic and Molecular Electrical Interactions                                                   527

5.      Static Electrical Properties of Bulk Matter                                                       530

6.      Electrostatic Applications to Native and Synthetic Macromolecules               533

7.      Capacitors and Membranes                                                                                534

8.      Membrane Channels: Part I                                                                               543

9.      Electric Potential Mapping of the Human Body: Heart, Muscle,                     545

            and Brain                                                                                                       

Questions/Problems                                                                                                   549

Chapter 17   Electric Current and Cell Membranes                                                            555

1.      Electric Current and Resistance                                                                         555

2.      Ohm’s Law and Electrical Measurements                                                         563

3.      Membrane Electrical Currents                                                                           570

4.      Overview of Nerve Structure and Function; Measurement Techniques          576

5.      Electrical Properties of Neurons                                                                         579

6.      Membrane Channels: Part II                                                                              584

Questions/Problems                                                                                                   589

Chapter 18   Magnetic Fields                                                                                                597

1.      Magnetic Fields and Forces                                                                                598

2.      Torque and Force on a Magnetic Dipole                                                            607

3.      The Stern-Gerlach Experiment and Electron Spin                                             610

4.      Producing B fields                                                                                                611

Questions/Problems                                                                                                   619

 

Chapter 19   Electromagnetic Induction and Radiation                                                       627

1.      Electromagnetic Induction and Faraday's Law                                                  627

2.      Nuclear Magnetic Resonance (NMR)                                                               636

3.      Magnetic Resonance Imaging                                                                            645

4.      Maxwell's Equations; Electromagnetic Radiation                                             649

Questions/Problems                                                                                                   654

Chapter 20   Electromagnetic Waves                                                                                   661

1.      Electromagnetic Waves                                                                                       661

2.      Laser tweezers                                                                                                     669

3.      Polarization                                                                                                           675

4.      The Electromagnetic Spectrum                                                                           679

5.      The Quantum Theory of Radiation:  Concepts                                                  681

6.      The Interaction of Radiation with Matter; A Primer on Spectroscopy             683

Questions/Problems                                                                                                   692

 

Chapter 21   Geometrical Optics                                                                                          698

1.      Optical Properties of Matter                                                                               698

2.      Light at an Interface                                                                                            701

3.      Optical Fibers and Their Applications in Medicine                                           708

Questions/Problems                                                                                                   713

 

Chapter 22   Optical Lenses and Devices                                                                            721

1.      Optical Lenses                                                                                                     721

2.      The Human Eye                                                                                                   732

3.      Optical Devices: The Magnifying Glass and Optical Microscope                   741

Questions/Problems                                                                                                   744

Chapter 23   Wave Optics                                                                                                     751

1.      Diffraction and Interference of Light                                                                 751

2.      Single, Double, and Multiple Slits and Interferometers                                    759

3.      Resolution                                                                                                            772

Questions/Problems                                                                                                   777

 

Chapter 24   Imaging Using Wave Optics                                                                            782

1.      The New Light Microscopies                                                                              782

2.      Optical Activity; Applications of Light Polarization                                           791

3.      Electron Microscopy                                                                                           797

4.      X-rays: Diffraction and Computed Tomography (CT)                                       801

Questions/Problems                                                                                                   809

Chapter 25   Special Relativity and Quantum Physics                                                        812

1.      Special Relativity: Mass-Energy and Dynamics                                               812

2.      Overview of Quantum Theory                                                                             817

3.      Wave Functions; the Schrödinger Equation                                                       823

4.      Uncertainty Principle; Scanning Tunneling Microscope                                    827

Questions/Problems                                                                                                   833