wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Which is correct about GPP and NPP in ecosystem?

A
NPP = GPP – Plant respiration
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
NPP = GPP + Plant respiration
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
NPP = GPP – Animal respiration
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
NPP = GPP + Animal respiration
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A NPP = GPP – Plant respiration
In a food chain, energy stored at the producer level is called as primary productivity (PP).

Energy stored at the consumer level is called as secondary productivity. It is the rate of energy storage at the consumer level.

Consumer-level includes herbivores, carnivores and decomposers. Gross primary productivity (GPP) is the rate of photosynthesis.

Net primary productivity (NPP) is the rate of storage of organic matter except which is utilized for the respiration by plants.

Hence, we can say that NPP = GPP - plant respiration. It is the total biomass available for consumers.

Thus, the correct answer is 'NPP = GPP - Plant respiration.'

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Carbon Cycle
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon