Back to your test review

After a longer exposure to 14CO2, a C4 plant will also show the label in 3-PGA. This 3-PGA is formed in the

  • (a) mesophyll cells Your answer
  • (b) bundle sheath cells Correct
  • (c) vascular tissue Your answer
  • (d) epidermal cells Your answer
Your answer: Correct answer: (b)
Advertisement

Explanation

Why (b) is correct

The label reaches 3-PGA when the CO2 released from C4 acids is fixed by RuBisCO in the bundle sheath cells.

Why the other options are wrong

  • (a) · your answer Mesophyll cells lack RuBisCO.
  • (c) · your answer Vascular tissue does not fix CO2.
  • (d) · your answer Epidermal cells do not fix CO2.
NCERT point: C4 plants use both pathways: C4 then C3.
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

Which of the following is the best explanation for C4 plants being better suited to hot, dry conditions than C3 plants? Which of the following is NOT a difference between C3 and C4 plants? A plant leaf shows a ring of large cells with many chloroplasts around each vascular bundle, and its mesophyll cells hav…