Biology, the science of life

Lecture 1. The Scope of "life"

lecture 2. More on the origin of life

lecture 3. The organism and the cell

lecture 4. Proteins

how things get done in the cell

lecture 5. Which molecule holds the code?

lecture 6. The double helix

lecture 7. The nuts and bolts of replicating DNA

lecture 8. The central dogma

lecture 9. The genetic code

lecture 10. From DNA to RNA

lecture 11. From RNA to protein

lecture 12. When mistakes happen

lecture 13. Dividing DNA between dividing cells

lecture 14. Mendel and his pea plants

lecture 15. How sex leads to variation

lecture 16. Genes and chromosomes

lecture 17. Charles Darwin and "The origin of species"

lecture 18. Natural selection in action

lecture 19. Reconciling Darwin and Mendel

lecture 20. Mechanisms of evolutionary change

lecture 21. What are species and how do new ones arise?

lecture 22. More on the origin of new species

lecture 23. Reconstructing evolution

lecture 24. The history of life, revisited

lecture 25. From cells to organisms

lecture 26. Control of gene expression I

lecture 27. Control of gene expression II

lecture 28. Getting proteins to the right place

lecture 29. Genetic engineering and biotechnology

lecture 30. How cells talk

signals and receptors

lecture 31. How cells talk

ways that cells respond

lecture 32. From one cell to many in an organism

lecture 33. Patterns of early development

lecture 34. Determination and differentiation

lecture 35. Induction and pattern formation

lecture 36. Genes and development.

Lecture 37. Homeostasis

lecture 38. Hormones in animals

lecture 39. What is special about neurons?

lecture 40. Action potentials and synapses

lecture 41. Synaptic integration and memory

lecture 42. Sensory function

lecture 43. How muscles work

lecture 44. The innate immune system

lecture 45. The acquired immune system

lecture 46. Form and function in plants I

lecture 47. Form and function in plants II

lecture 48. Behavior as an adaptive trait

lecture 49. Energy and resources in living systems

lecture 50. How energy is harnessed by cells

lecture 51. Enzymes

making chemistry work in cells

lecture 52. Cellular currencies of energy

lecture 53. Making ATP

glycolysis

lecture 54. Making ATP

cellular respiration

lecture 55. Making ATP

the chemiosmotic theory

lecture 56. Capturing energy from sunlight

lecture 57. The reactions of photosynthesis

lecture 58. Resources and life histories

lecture 59. The structure of populations

lecture 60. Population growth

lecture 61. What limits population growth?

lecture 62. Costs and benefits of behavior

lecture 63. Altruism and mate selection

lecture 64. Ecological interactions among species

lecture 65. Predators and competitors

lecture 66. Competition and the ecological niche

lecture 67. Energy in ecosystems

lecture 68. Nutrients in ecosystems

lecture 69. How predictable are ecological communities?

lecture 70. Biogeography

lecture 71. Human population growth

lecture 72. The human asteroid.

Lecture 37: Homeostastis

Lecture 38: Hormones in animals

Lecture 39: What is special about neurons?

Lecture 40: Action potentials and synapses

Lecture 41: Synaptic integration and memory

Lecture 42: Sensory function

Lecture 43: How muscles work

Lecture 44: The innate immune system

Lecture 45: The acquired immune system

Lecture 46: Form and function in plants I

Lecture 47: Form and function in plants II

Lecture 48: Behavior as an adaptive trait.

Lecture 25: From cells to organisms

Lecture 26: Control of gene expression I

Lecture 27: Control of gene expression II

Lecture 28: Getting proteins to the right place

Lecture 29: Genetic engineering and biotechnology

Lecture 30: How cells talk: Signals and receptors

Lecture 31: How cells talk: Ways that cells respond

Lecture 32: From one cell to many in an organism

Lecture 33: Patterns of early development

Lecture 34: Determination and differentiation

Lecture 35: Induction and pattern formation

Lecture 36: Genes and development.

Lecture 61: What limits population growth?

Lecture 62: Costs and benefits of behavior

Lecture 63: Altruism and mate selection

Lecture 64: Ecological interactions between species

Lecture 65: Predators and competitors

Lecture 66: Competition and the ecological niche

Lecture 67: Energy in ecosystems

Lecture 68: Nutrients in ecosystems

Lecture 69: How predictable are ecological communities?

Lecture 70: Biogeography

Lecture 71: Human population growth

Lecture 72: The human asteroid?

Lecture 49: Energy and resources in living systems

Lecture 50: How energy is harnassed by cells

Lecture 51: Enzymes: Making chemistry work in cells

Lecture 52: Cellular currencies of energy

Lecture 53: Making ATP: Glycosis

Lecture 54: Making ATP: Cellular respiration

Lecture 55: Making ATP: The chemiosmotic theory

Lecture 56: Capturing energy from sunlight

Lecture 57: The reactions of photosynthesis

Lecture 58: Resources and life histories

Lecture 59: The structure of populations

Lecture 60: Population growth.

Lecture 13: Dividing DNA between dividing cells

Lecture 14: Mendel and his pea plants

Lecture 15: How sex leads to variation - Lecture 16: Genes and chromosomes

Lecture 17: Charles Darwin and "The Origin of Species"

Lecture 18: Natural selection in action

Lecture 19: Reconciling Darwin and Mendel

Lecture 20: Mechanisms of evolutionary change

Lecture 21: What are species and how do new ones arise?

Lecture 22: More on the origin of new species

Lecture 23: Reconstructing evolution

Lecture 24: The history of life, revisited.