Cellular Respiration and Photosynthesis “biochemical pathways”

Classification of Organisms Autotrophs - makes glucose (producers) - plants - give us food Heterotrophs - obtain glucose (consumers) - animals - depend on autotrophs for glucose

Cellular Respiration “heterotrophs” Equation Occurs in mitochondria Two types a. aerobic respiration b. anaerobic respiration

Aerobic Respiration “uses oxygen” Makes the MOST ATP (32-38)

Anaerobic Respiration “no oxygen” Makes 2 ATP Lactic acid fermentation Alcohol fermentation

Photosynthesis “autotrophs” Equation Occurs in chloroplast Ultimate source of energy: sunlight

Two phases in Photosynthesis 1. light dependent a. depends on light b. water and ADP yields oxygen and ATP 2. light independent a. depends on CO2 b. uses the ATP and CO2 to make glucose

Biochemical Pathways The reactants of one equation are the products of the other; each are dependent on one another