Ecosystem Question 99
Question: The rate at which light energy is converted into chemical energy of organic molecules is the ecosystem’s [CBSE PMT 1998; BHU 1999; Kerala CET 2003]
Options:
A) Net primary productivity
B) Gross secondary productivity
C) Net secondary productivity
D) Gross primary productivity
Show Answer
Answer:
Correct Answer: D
Solution:
Gross primary productivity is the total rate of photosynthesis.
Light energy is converted into chemical energy including the organic matter used up in respiration during the measurement period.