During C3 cycle (calvin cycle) 3 phases continue, namely carboxylation, Reduction & regeneration. During reduction or fixation phase, each CO2 molecule require one mole of ATP and one mole of NADPH.
When one CO_2 molecule is fixed as one molecule of triose phosphate, which of the following photochemically made, high energy chemical intermediates…
NEET UG 2022 — Botany Photosynthesis in Higher Plants
When one CO2 molecule is fixed as one molecule of triose phosphate, which of the following photochemically made, high energy chemical intermediates are used in the reduction phase?
Held on 30 Apr 2022 · Verified 9 Jul 2026.
Options
- A
1 ATP +1 NADPH
- B
1 ATP +2 NADPH
- C
2ATP+1NADPH
- D
2 ATP +2 NADPH
Did you get this right?
Sign in to track your attempts and accuracy.
Your note
Sign in to keep a private note on this question. Nothing you write is ever public.
NEET UG Photosynthesis in Higher Plants in other years
More NEET UG Photosynthesis in Higher Plants questions
Which of the following statements about RuBisCO is true?
Match List I with List II: $\begin{array}{|l|l|l|l|}\hline & \text{List - I} & & \text{List - II} \\\hline \text{A}. & \text{Chlorophyll a} & \text{(i)} & \text{Yellow-green} \\\hline \text{B.} & \text{Chlorophyll b} & \text{(ii)} & \text{Yellow} \\\hline \text{C.} & \text{Xanthophylls} & \text{(iii)} & \text{Blue-green} \\\hline \text{D.} & \text{Carotenoids} & \text{(iv)} & \text{Yellow to Yellow-orange} \\\hline\end{array}$ Choose the option with all correct matches.
Observe the given figure. Identify the different stages labelled with alphabets by selecting the correct option. 
How many molecules of ATP and NADPH are required for every molecule of $\mathrm{CO}_2$ fixed in the Calvin cycle?
Given below are two statements: Statement I: In $\mathrm{C}_3$ plants, some $\mathrm{O}_2$ binds to RuBisCO, hence $\mathrm{CO}_2$ fixation is decreased. Statement II: In $\mathrm{C}_4$ plants, mesophyll cells show very little photorespiration while bundle sheath cells do not show photorespiration. In the light of the above statements, choose the correct answer from the options given below:
Other Botany topics for NEET UG
Keep practicing Photosynthesis in Higher Plants
Work through every NEET UG Photosynthesis in Higher Plants PYQ, year by year.