The carbon dioxide acceptor in the Calvin cycle is

Question

The carbon dioxide acceptor in the Calvin cycle is (A) phosphoenol pyruvate. (B) ribulose 1,5-diphosphate. (C) phosphoglyceric acid. (D) ribulose monophosphate.

Tardigrade Admin · Accepted Answer

In the Calvin cycle, initial CO2 is accepted by Ribulose 1,5 diphosphate (RuBP) already present in the cells and a 6 carbon addition compound is formed which is unstable. It soon gets converted into 2 molecules of 3 phosphoglyceric acid due to hydrolysis.

Q. The carbon dioxide acceptor in the Calvin cycle is

phosphoenol pyruvate.

ribulose 1,5-diphosphate.

phosphoglyceric acid.

ribulose monophosphate.

In the Calvin cycle, initial CO₂ is accepted by Ribulose 1,5 diphosphate (RuBP) already present in the cells and a 6 carbon addition compound is formed which is unstable. It soon gets converted into 2 molecules of 3 phosphoglyceric acid due to hydrolysis.