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Photosynthesis

Ch. 5

QuestionAnswer
Stage 1 of Photosynthesis energy is captured from sunlight
Stage 2 of Photosynthesis light energy is converted to chemical energy, which is temporarily stored in ATP and the energy carrier molecule NADPH
Stage 3 of Photosynthesis the chemical energy stored in ATP and NADPH powers the formation of organic compounds, using carbon dioxide
Photosynthesis occurs in the chloroplasts of plant cells and algae and in the cell membranes of certain prokaryotes
Equation for Photosynthesis: 6CO2+6H2O--light--> C6H12O6+6O2 carbon dioxide+ water-->sugars+oxygen gas
Carbon Dioxide Fixation & the Calvin Cycle CO2 in the atmosphere is used to make organic compounds in which chemical energy is stored.
Most common method of carbon dioxide fixation is the... Calvin Cycle
Stage 1 of Calvin Cycle each molecule of CO2 is added to a five-carbon compound by an enzyme
Stage 2 of Calvin Cycle the resulting 6-carbon compound splits into two three-carbon compounds. Phosphate groups from ATP and electrons from NADPH are added to the 3-carbon compounds, forming 3-carbon sugars
Stage 3 of Calvin Cycle one of the resulting 3-carbon sugars if used to make organic compounds- incuding starch & sucrose- in which energy is stored for later use by the organism
Stage 4 of Calvin Cycle the other 3-carbon sugars are used to regenerate the initial 5-carbon compound, thereby completing the cycle
Factors that affect photosynthesis are... Carbon dioxide, temperature, and light
Created by: doomngloom
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