Question

which statement is false regarding rubisco?
it is an enzyme located in chloroplasts.
it is estimated to be the most abundant enzyme on earth.
it is responsible for the first step of carbon fixation.
it directly converts atp and nadph to glucose.

Explanation:

Rubisco is a chloroplast enzyme, the most abundant enzyme on Earth, and catalyzes the first step of carbon fixation (combining CO₂ with RuBP). ATP and NADPH are used in the Calvin cycle's reduction phase, not directly converted to glucose by Rubisco. Thus, the false statement is D.

Answer:

D. It directly converts ATP and NADPH to glucose.