1. WARM UP 10/13 1. Explain what a buffer does. 2. What biomolecule? a. Enzymes b. Store energy long-term c. Nerve impulses d. Break down foods e. Stores genetic information f. Body oils g. Short term energy h. Water balance I. Keep body temp

2. AGENDA Ch 2 TODAY: 1. NOTES (last ones) 2. Crossword Review (due next class) - ec if today THURS: 1. Study Guide 2. Notebook outline MONDAY: Review, Go over SG WED: TEST Ch 2

3. NOTES Ch 2: bioenergy 10/13

4. BIOENERGY Energy that living things make, store, or use to live. *Comes from food

5. CATABOLISM Process by which organisms get energy by breaking down foods Decomposition reaction (releases energy) ½ energy stored as ATP (energy molecule) ½ released as heat (keeps body warm)

6. ANABOLISM Process by which the body builds molecules Synthesis reaction (uses energy)

7. METABOLISM All the chemical changes food goes through in the body “body’s use of food” Anabolism + catabolism

8. 2 forms: PLANTS: Photosynthesis Co2 + water + sun -----  O2 + sugar ANIMALS Cellular Respiration O2 + sugar --  water + Co2 + energy

9. WARM UP 9/29 1. Find the atomic number of sodium 2. What is made when an acid and base react? 3. What does ADH do? 4. What are 3 ways our body maintains acid-base balance? 5. What is a negative ion called? 6. What period is iron in?

10. 1.NOTES Ch 2 9/29 Own Page 46 BIOENERGY – a)define b) tell where energy comes from CATABOLISM – a)define b)type of reaction c) what broke down?/released? d) what happens to this energy e)what is ATP (pg 600 top) BIOSYNTHESIS – a) define ANABOLISM – a) define (pg 600 #2 to help) b) type of reaction c) what it does to the molecules d) uses or makes energy? METABOLISM – a) define