Biology Bioenergetics SZABMU 2023
PMDC Verified Question 35 of 67
End product of Calvin cycle is:
A
3 phosphoglycerate
B
1-3 bisphosphoglycerate
C
Glyceraldehyde 3 phosphate
D
Glucose
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Glyceraldehyde 3 phosphate
Concept:

The Calvin cycle builds sugar one carbon at a time and releases a specific 3-carbon intermediate.

Solution:

  • The direct, final carbohydrate product that exits the Calvin cycle is Glyceraldehyde 3-phosphate (G3P).
  • For every 3 turns of the cycle, one G3P molecule leaves to be used by the plant to build glucose and other organic compounds.


Why other options are incorrect:

  • 3-phosphoglycerate and 1,3-bisphosphoglycerate are intermediates within the cycle.
  • Glucose is assembled later outside the cycle in the cytoplasm using two G3P molecules.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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