How many carbon atoms are present in Ribulose phosphate?

Explanation

Ribulose phosphate specifically refers to ribulose-1,5-bisphosphate (RuBP), a 5-carbon sugar phosphate. It plays a critical role in the Calvin Cycle by acting as a substrate for the enzyme RuBisCO during the carbon fixation stage. This process is essential for converting atmospheric carbon dioxide into organic compounds in plants.Option A is correct because RuBP has 5 carbon atoms. Options B, C, and D are incorrect as they suggest different carbon counts that do not match the structure of ribulose phosphate.