Use the following figure and the compounds labelled A, B, C, D, and E to answer the following questions.

-If the carbon atom of the incoming CO₂ molecule is labelled with a radioactive isotope of carbon, which organic molecules will be radioactively labelled after one cycle?
A)C only
B)B, C, D, and E
C)C, D, and E only
D)B and C only
E)B and D only

Question

Use the following figure and the compounds labelled A, B, C, D, and E to answer the following questions.
 
-If the carbon atom of the incoming CO₂ molecule is labelled with a radioactive isotope of carbon, which organic molecules will be radioactively labelled after one cycle?
A)C only 
B)B, C, D, and E 
C)C, D, and E only 
D)B and C only 
E)B and D only

Quizplus · Accepted Answer

During one cycle of the Calvin cycle, the carbon from CO₂ is incorporated into a 3-carbon molecule (3-phosphoglycerate) and eventually into other intermediates like B, C, D, and E.

Use the Following Figure and the Compounds Labelled A, B