College

What molecule does carbon dioxide join with when it enters the Calvin cycle?

A. G3P
B. ATP
C. 3-PGA
D. RuBP

Answer :

Final answer:

Carbon dioxide joins with a 5-carbon molecule called RuBP in the Calvin cycle.


Explanation:

When carbon dioxide enters the Calvin cycle, it combines with a 5-carbon molecule called RuBP (ribulose-1,5-bisphosphate). This reaction is catalyzed by the enzyme RuBisCO (Ribulose-1,5-bisphosphate carboxylase/oxygenase). The resulting unstable compound quickly breaks down into two molecules of 3-phosphoglycerate (3-PGA).


Learn more about RuBP as a molecule in the Calvin cycle here:

https://brainly.com/question/29458913