1. METABOLISM SECTION 2-7 PAGES 62-64 C+C #1,3,4 P.66

2. CHEMICAL REACTIONS IN ORGANISMS METABOLISM: ALL CHEMICAL ACTIVITIES AND CHANGES THAT TAKES PLACE IN CELLS (ANABOLISM + CATABOLISM = METABOLISM) -BOTH ANABOLISM AND CATABOLISM INVOLVE FREE ENERGY -ENERGY INPUT=ENERGY OUTPUT -IF ENERGY INPUT EXCEEDS ENERGY OUTPUT, GROWTH OCCURS -IF ENERGY OUTPUT EXCEEDS ENERGY INPUT, WEIGHT LOSS OCCUR)

3. 2 TYPES OF METABOLISM 1. BIOSYNTHESIS (ANABOLISM)  BUILD UP, FORM NEW PRODUCTS, USING “BUILDING BLOCKS”  SMALL LESS COMPLEX TO LARGE COMPLEX MOLECULES (MONOMERS TO POLYMERS)  EXAMPLES: PHOTOSYNTHESIS AND CHEMOSYNTHESIS

4. 2. DECOMPOSITION (CATABOLISM)  THE BREAKDOWN OF SUBSTANCES  LARGE COMPLEX MOLECULES ARE BROKEN DOWN INTO SMALL SIMPLER ONES  EXAMPLE: CELLULAR RESPIRATION

5. SECTION 2-8 P.64-66 ENERGY TRANSFER AND ATP

6. THE STRUCTURE OF ATP ATP  ADENOSINE TRIPHOSPHATE - ADENINE (THE NITROGEN BASE) - RIBOSE (THE 5 C SUGAR) - 3 PHOSPHATES (PHOSPHORIC ACID)

7. THE EQUATION FOR ATP BREAKDOWN ATP  ADP + P + ENERGY -ADP: ADENOSINE DIPHOSPHATE -A-P-P~P (WRITTEN OUT) -~ = HIGH ENERGY BOND BETWEEN PHOSPHATES 2 AND 3 *WHEN THIS BOND IS BROKEN, ENERGY IS RELEASED FOR THE CELL TO USE* *CHEMICAL ENERGY IS TRANSFORMED INTO FREE ENERGY*

9. THE ATP CYCLE KNOWN AS A COUPLED REACTION SINCE IT IS CYCLICAL