Biology : PU-CET (U.G) 2016 Panjab University Entrance Exam With Answers

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55.

Energy Molecule Is Produced During Light Reaction And Transferred To The Dark Reaction By :

A: Chlorophyll

B: ADP

C: ATP

D: RuBP

The answer is: C

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Explanation

The energy molecule produced during the light reactions of photosynthesis is ATP (Adenosine triphosphate).

It is then transferred to the dark reactions (also known as the Calvin cycle) to power the process of carbon fixation. Therefore, the correct answer is C: ATP.

Chlorophyll is the pigment that absorbs light energy during the light reactions, ADP is converted to ATP during the light reactions, and RuBP (ribulose-1,5-bisphosphate) is the molecule that combines with carbon dioxide during the dark reactions.