Question Detail

BIO 101 BIO 101 Past Questions Objective Question

Question

During photosynthesis fixation is a process of the
Options
A light reaction
B Dark reaction
Correct Answer
C light & dark reaction
D None
Correct Answer

Option B is the correct answer.

Detailed Explanation

Carbon fixation is the process of incorporating inorganic CO2 into an organic molecule. This occurs during the dark reactions (Calvin cycle), specifically when RuBP carboxylase (RuBisCO) attaches CO2 to RuBP.

Hint

In which stage of photosynthesis is CO2 actually 'fixed' into a sugar?

Question Info