3. Two notable breakthroughs in the history of biochemistry Prentice Hall c2002 Chapter 1 (1) Discovery of the role of enzymes as catalysts (2) Identification of nucleic acids as information molecules Flow of information: from nucleic acids to proteins DNA RNA Protein

6. Prentice Hall c2002 Chapter 1

9. Prentice Hall c2002 Chapter 1

11. Fig 1.2 (a) General formulas Prentice Hall c2002 Chapter 1

12. Fig 1.2(b) General Formulas Prentice Hall c2002 Chapter 1

13. Fig 1.2 (c) General Formulas Prentice Hall c2002 Chapter 1

16. Fig 1.3 Structure of an amino acid and a dipeptide Prentice Hall c2002 Chapter 1 (a) Amino group (blue), carboxylate group (red) (b) Dipeptides are connected by peptide bonds

19. Fig 1.5 Representations of the structure of ribose Prentice Hall c2002 Chapter 1

20. Fig 1.6 (a) Glucose, (b) Cellulose Prentice Hall c2002 Chapter 1 Glycosidic bonds connecting glucose residues are in red

28. Fig 1.11 Structures of (a) glycerol 3-phosphate, (b) a glycerophospholipid Prentice Hall c2002 Chapter 1

32. Energy Flow Prentice Hall c2002 Chapter 1

37. Fig. 1.14 E. coli cell Prentice Hall c2002 Chapter 1

39. Fig 1.15 (a) Eukaryotic cell (animal) Prentice Hall c2002 Chapter 1

40. Fig 1.15(b) Eukaryotic cell (plant) Prentice Hall c2002 Chapter 1

41. A. The Nucleus Prentice Hall c2002 Chapter 1 Nuclear envelope and endoplasmic reticulum of a eukaryotic cell

43. Golgi apparatus Prentice Hall c2002 Chapter 1

45. Chloroplasts - sites of photosynthesis in plants, green algae Prentice Hall c2002 Chapter 1