What is the primary reason that plants must regulate the act

What is the primary reason that plants must regulate the activity of RuBP carboxylase?

A.) The Calvin cycle must be prevented from consuming ATP and NADPH in a wasteful futile cycle. B.) RuBP is found in high abundance, and is a very efficient enzyme. C.) Calvin cycle must be regulated to prevent the synthesis of excess GAP. D.) The Calvin cycle must be prevented from consuming CO₂ in a wasteful futile cycle

How does photophosphorylation differ from mitochondrial oxidative phosphorylation?

A.) The chloroplast ATP synthase is bound to the thylakoid membrane. B.) ATP synthase translocates protons out of the thylakoid space.C.) The chloroplast ATP synthase is composed of two units, called CF₁ and CF₀. D.) In chloroplasts, ATP synthesis is driven by proton translocation through CF₀

Solution

1)-A&B because in futile cycle their is lot of wasting of ATP

2)-A & B because mitochondrial oxidative phosphorylation occur between the layers of membrane