What happens in the chloroplast when CO2 fixation slows down? The amounts of ADP

Question

What happens in the chloroplast when CO2 fixation slows down? The amounts of ADP and NADP would decrease The amount of G-3-P made would decrease The amounts of RuBP would decrease The light reactions begin to slow down

USE THE METABOLIC PATHWAY SHOWN BELOW TO ANSWER THE FOLLOWING QUESTION L is an allosteric inhibitor of Enzyme A. What would happen if levels of L increased? (choose all that apply) Chem Rxn Enzyme A activity would increase Enzyme B activity would slow down Enzyme C activity would slow down Enzyme A activity would decrease Less of product L would be produced by the pathway

Explanation / Answer

1.The amount of G-3-P made would decrease.

Reason:CO2 reacts with RUBP to form 6 molecules of G-3-Pans in its slow fixation,level of G-3-P will decrease.

2.Enzyme A activity would decrease.

Reason: L being an allosteric inhibitor of enzyme A will inhibit its activity.

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