Back to your test review

A wasteful, light-dependent process in which CO2 is released and no ATP or sugar is made is called

  • (a) photorespiration Correct
  • (b) respiration Your answer
  • (c) fermentation Your answer
  • (d) CAM Your answer
Your answer: Correct answer: (a)
Advertisement

Explanation

Why (a) is correct

Photorespiration is light-dependent, uses O2, releases CO2 and produces neither sugar nor ATP; in fact it uses up ATP. That is why it is called wasteful.

Why the other options are wrong

  • (b) · your answer Respiration releases CO2 but makes ATP, and it goes on in light and dark.
  • (c) · your answer Fermentation is anaerobic and makes some ATP; it is not light-dependent.
  • (d) · your answer CAM is a water-saving way of fixing CO2, not a wasteful process.
NCERT point: Photorespiration happens when RuBisCO binds O2 instead of 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

In photorespiration, CO2 is released in the Photorespiration occurs A CO2-concentrating mechanism around RuBisCO is found in