Back to your test review

At low light intensity, the response of C3 and C4 plants to high CO2 is that

  • (a) neither responds Correct
  • (b) only C3 plants respond Your answer
  • (c) only C4 plants respond Your answer
  • (d) both show a large increase Your answer
Your answer: Correct answer: (a)
Advertisement

Explanation

Why (a) is correct

At low light intensity, neither C3 nor C4 plants respond to high CO2, because light is then the limiting factor.

Why the other options are wrong

  • (b) · your answer C3 plants also do not respond at low light.
  • (c) · your answer C4 plants also do not respond at low light.
  • (d) · your answer Neither shows an increase at low light.
NCERT point: At high light, both show increased photosynthesis with CO2.
What is wrong?
Thank you! We will check this question.
Practise Photosynthesis in Higher Plants
Take a free 15-question NEET Biology test on this chapter. Timed, scored instantly.
Start free test

Similar questions

C4 plants show saturation of photosynthesis with respect to CO2 at about The present CO2 level of the atmosphere is limiting for Which reactions of photosynthesis are most affected by temperature?