Inputs And Outputs Of Calvin Cycle

Question: Carobxylation

Answer: a chemical reaction in which carbon dioxide is added to another molecule and a carboxylic acid group is produced. It occurs, for example, in the Calvin cycle when carbon dioxide is added to a 5-carbon molecule.

Question: Reduction

Answer: a reaction in which a molecule gains electrons

Question: Regeneration

Answer: in the context of photosynthesis, the third step of the Calvin cycle, in which the 5-carbon molecule needed for carboxylation is produced

Question: Ribulose 1, 5-bisphosphate (RuBP)

Answer: the 5-carbon sugar to which carbon dioxide is added by the enzyme rubisco

Question: Ribulose Bisphosphate Carboxylase Oxygenase (Rubisco)

Answer: the enzyme that catalyzes the carboxylation reaction in the Calvin cycle

Question: 3-phosphogylcerate (3-PGA)

Answer: a 3-carbon molecule; during the Calvin cycle, two molecules of 3-PGA are the first stable products following the addition of carbon dioxide

Question: Triose Phosphate

Answer: a 3-carbon carbohydrate molecules, produced by the Calvin cycle and exported from the chloroplast

Question: What are the major inputs and outputs of the Calvin cycle?

Answer: The major inputs of the Calvin cycle are CO2 (from the atmosphere) and ATP and NADPH (from the photosynthetic electron transport chain). The major outputs of the Calvin cycle are ADP, NADP+, and carbohydrates (triose phosphates).

Question: What are the three major steps in the Calvin cycle and the role of the enzyme rubisco?

Answer:

Question: The Calvin cycle requires both ATP and NADPH. Which of these molecules provides the major input of energy needed to synthesize carbohydrates?

Answer: NADPH supplies the major input of energy that is used to synthesize carbohydrates in the Calvin cycle.