Photosynthesis In Higher Plants Question 168

Question: What will be the effect of intermittent light on photosynthesis

Options:

A) It will increase

B) It will decrease

C) Will not be effected

D) Process will stop

Show Answer

Answer:

Correct Answer: A

Solution:

Because light reaction is much faster than dark reaction, so in continuous light there is accumulation of ATP and $ NADPH_2 $ and hence reduction in rate of photosynthesis but in discontinuous light, ATP and $ NADPH_2 $ formed in light are fully consumed during dark in reduction of $ CO_2 $ to carbohydrates.