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Cellular Respiration and Photosynthesis Relationship (((vs. ((Occurs…
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- The goal of the Calvin Cycle is to reduce carbon dioxide to G3P. The Calvin Cycle consists of three steps which include carbon fixation, CO2 reduction, and regeneration of RUBP. Through the use of ATP and NADP from the light reactions CO2 is can be absorbed and can become carbohydrate (CH2O).
Stage 1: Glycolysis
- This occurs in the cytoplasm and anaerobic through a sequence of enzymatic reactions.
- the breakdown of glucose by enzymes which release energy and pyruvic acid
Stage 2: Pyruvate Oxidation
- This reaction only takes place in the mitochondria and the two pyruvate molecules from glycolysis are changed into two molecules of acetyl CoA with two molecules of CO2 made which is a metabolic waste.
Stage 3: Krebs Cycle
- combines 2 carbon molecule acetyl CoA with 4 carbon molecule to create oxaloacetate. It cycles the resulting product through a series of transitions that form the molecule back to oxalacetate.
- NAD+ is reduced to 8 NADH and FAD is reduced to two FADH2.
- The cycle repeats twice for every glucose molecule
Stage 4 Electron transport chain:
- is where major energy occurs
- electrons carried by NADH and FADH2 are pushed through a channel of carriers until they are reached by oxygen which mixes with hydrogen ions to create H2O. An electrochemical gradient also occurs as hydrogen ions are pushed into the intermembrane space. ATP synthase is then created into synthesizes ATP from ADP+P
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