Which pathway is utilized for carbon fixation in chloroplasts and cyanobacteria?
A) the acetyl-CoA pathway
B) the reverse tricarboxylic acid cycle
C) the 3-hydroxypropionate cycle
D) the reductive pentose phosphate cycle
E) none of the above

Question

Quizplus · Accepted Answer

The reductive pentose phosphate cycle, also known as the Calvin Cycle, is used for carbon fixation in chloroplasts and cyanobacteria. This cycle involves the fixation of carbon dioxide into organic molecules, which are further processed to produce carbohydrates such as glucose. The other pathways listed (acetyl-CoA pathway, reverse tricarboxylic acid cycle, and 3-hydroxypropionate cycle) are used for carbon fixation in other organisms but not in chloroplasts or cyanobacteria.

Which Pathway Is Utilized for Carbon Fixation in Chloroplasts and Cyanobacteria