Pre AP - CELL ENERGY NOTES I. Energy A. Energy for living things comes from Originally the energy in food comes from B. Uses light energy from the sun to produce food – Examples: C. Cannot use the sun’s energy to make food – Examples: II. Cell Energy A. Cells usable source of energy – 1. ATP stands for adenosine triphosphate 2. ADP stands for -- ATP B. All energy is stored in the bonds of the compound Breaking the bond releases energy C. When cell has energy available it can store this energy by adding a phosphate group to ADP, producing ATP D. Example: III. Photosynthesis – A. General Formula: B. 2 parts of photosynthesis: 1. 2. C. Photosynthesis occurs in the organelle – D. Light absorbing compounds – Most common photosynthetic compound – E. HANDOUT F. Sun’s energy is stored in – IV. Cellular Respiration – A. General Formula: B. Cellular respiration occurs in all cells of all organisms C. Energy stored by photosynthesis in glucose is converted into the energy of – D. HANDOUT E. Respiration requiring oxygen – 1. organelle occurring in – E. Respiration NOT requiring oxygen – Also called – 1. Alcoholic Fermentation: a. organisms b. industries 2. Lactic acid fermentation: a. lactic acid is produced in the muscles during rapid exercise when the body cannot supply enough oxygen to tissues (burning painful sensation) 3. occurs in – DIAGRAM: ANAEROBIC ________________________________________________________________________cytoplasm______ mitochondrion AEROBIC
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