NEET UG · Biology · Ecosystem

Net Primary Productivity (NPP) Equation

NEET asked Net Primary Productivity (NPP) Equation twice, in 2021 and 2023: 2 of the 1,875 questions in the 10 papers from 2017–2026. It belongs to Energy Flow in Ecosystem, in Ecosystem (Biology). The longest wait between two papers asking it was 2 years.

Updated 2026-10-08

Times asked: 2; in 2017–2026
Papers: 2; of 10
First asked: 2021; last in 2023
Chance next paper: 6%; calibrated historical rate

Questions on this idea, by paper

2017–2026. 2021 and 2023.

How NEET framed it

One-line MCQ is the usual form. Skill tested: recall.

Definition recall

Chance asked next paper 6%

Every question

All 2 questions

From the official NEET UG papers, newest first. Open one for the full question, the options and the official answer.

2023 Q 116 In the equation GPP - R = NPP GPP is Gross Primary Productivity NPP is Net Primary Productivity R here is ________. One-line MCQ \cdot Easy 2021 Q 118 In the equation GPP - R = NPP R represents : One-line MCQ \cdot Easy

Papers: NEET 2021, NEET 2023.

Same topic

Other ideas in Energy Flow in Ecosystem

Energy Flow in Ecosystem has 11 ideas NEET has asked; 4 of them came up in more than one question.

Trophic Level Identification2× · 2026
Detritivores vs. Decomposers2× · 2023
Inverted Pyramid of Biomass2× · 2021
Upright Pyramid of Energyonce · 2026
Energy Pyramid Unitsonce · 2025
Gross Primary Productivity (GPP)once · 2025
Second Law of Thermodynamics in Ecosystemsonce · 2025
Lindeman's 10 Percent Lawonce · 2024
Standing State vs Standing Crop Distinctiononce · 2021
GPP vs NPP Magnitude Comparisononce · 2020

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