For the process of light reaction, water, light and chlorophyll are required. CO2 is used during the second stage of photosynthesis i.e. dark reaction. Oxygen is a product of light reaction formed by photolysis of water.
NEET UG 2024 — Botany Photosynthesis in Higher Plants
Which of the following are required for the light reaction of Photosynthesis? A. CO2 B. O2 C. H2O D. Chlorophyll E. Light Choose the correct answer from the options given below:
Held on 30 Apr 2024 · Verified 9 Jul 2026.
A, C, D and E only
C, D and E only
A and B only
A, C and E only
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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.
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:
Observe the given figure. Identify the different stages labelled with alphabets by selecting the correct option. 
Which of the following are required for the dark reaction of photosynthesis? A. Light B. Chlorophyll C. $\mathrm{CO}_2$ D. ATP E. NADPH Choose the correct answer from the options given below:
Work through every NEET UG Photosynthesis in Higher Plants PYQ, year by year.