Back to your test review

The 3-carbon molecule released in the bundle sheath cells of a C4 plant is

  • (a) returned to the mesophyll and converted to PEP Correct
  • (b) used directly to make starch in the sheath Your answer
  • (c) released into the air through the stomata Your answer
  • (d) converted into RuBP in the bundle sheath Your answer
Your answer: Correct answer: (a)
Advertisement

Explanation

Why (a) is correct

The 3-carbon molecule (pyruvate) is returned to the mesophyll cells and converted back to PEP, completing the C4 cycle.

Why the other options are wrong

  • (b) · your answer It is not used to make starch directly.
  • (c) · your answer It is not released into the air.
  • (d) · your answer It is not converted to RuBP.
NCERT point: Regeneration of PEP costs ATP, which is why C4 plants use more ATP.
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 C4 plants, CO2 is fixed Even though the first product of C4 plants is a 4-carbon acid, the main biosynthetic pathway in them is the Which of the following is the correct sequence in the C4 pathway?