Paper 1 · People, Development and Environment
UGC NET June 2024 Re-Exam (23.08.2024) Shift-I
The amount of biomass produced by plants through photosynthesis minus respiration losses in a given time period is known as:
AGross primary productivity
BNet primary productivity ✓ Correct
CGross ecological productivity
DNet secondary productivity
Correct answer: (B) Net primary productivity — Biomass from photosynthesis minus respiration is net primary productivity, so that is the answer.
Explanation
★Biomass from photosynthesis minus respiration is net primary productivity, so that is the answer.
★Gross primary productivity is the total biomass fixed by plants through photosynthesis.
★Some of this energy is used up by the plants in respiration.
★Subtracting respiration losses from the gross amount gives net primary productivity.
★This is the energy available for growth and for higher trophic levels.
★So the described quantity is net primary productivity.
Want more like this? Create a free account to practise a full test, track your progress, and get spaced-repetition review.
Shared by Mcqkart · via Mcqkart.in