NEET Previous Year Questions(PYQs) MCQs on Photosynthesis in Higher Plants Class-XI Biology

Question 21 of 23

🟢 NEET 2026 📘 CLASS XI

The enzyme required for carboxylation in the Calvin cycle is:

RuBisCO catalyzes the carboxylation of RuBP, the first step of the Calvin cycle.

Question 22 of 23

🟢 NEET 2026 📘 CLASS XI

Find the incorrect statement(s) about photosynthesis from the following:

(A) The water splitting complex is associated with PS I.
(B) C₄ plants use the C₃ pathway of CO₂ fixation as the main biosynthetic pathway.
(C) In C₄ plants, photorespiration does not occur.
(D) C₃ plants exhibit Kranz anatomy.
(E) ATP synthesis in chloroplast occurs through chemiosmosis.

Choose the correct answer from the options given below:

Water splitting occurs in PS II, not PS I. Kranz anatomy is a feature of C₄ plants, not C₃ plants. Statements B, C and E are correct.

Question 23 of 23

🟢 NEET 2026 📘 CLASS XI

How many ATP and NADPH molecules are required to make one molecule of glucose through the Calvin pathway?

For the synthesis of one glucose molecule (fixation of six CO₂), the Calvin cycle requires 18 ATP and 12 NADPH.

Photosynthesis in Higher Plants NEET PYQs