Question

RuBisCo constitutes

• A. 4% of the chloroplast protein
• B. 11% of the chloroplast protein
• C. 16% of the chloroplast protein
• D. 25% of the chloroplast protein

Answer 1

Answer: (C)

16% of the chloroplast protein

Ribulose-1,5-bisphosphate carboxylase/oxygenase is an enzyme which is involved in the first step of carbon fixation and is also known as RuBisCo. It helps to combine carbon dioxide with ribulose-1,5 biphosphate. It is the most abundant protein on earth. It constitutes 16% of chloroplast protein.