Home Biology Ecosystem Ecology - Ecosystem To Productivity Gross primary productivity is –
Biology Ecosystem Ecology - Ecosystem To Productivity Single Correct MCQ
Published on: August 12, 2026

Gross primary productivity is –

A
Rate at which organic molecules are formed in an autotroph
B
Rate at which organic molecules are used up by an autotroph
C
Storage of organic molecules in the body of an autotroph
D
Rate at which organic molecules are transferred to next higher trophic level

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The correct answer is:
A

Gross Primary Productivity (GPP) is the total rate at which autotrophs produce organic matter by photosynthesis. It is the total food formed before subtracting respiration losses.

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