In Hatch and Slack pathway, the primary CO2 acceptor is phosphoenol pyruvate. This occurs in C4-plants. Phosphoenol pyruvate, a 3 -carbon compound, accepts CO2 and forms oxaloacetic acid which is a 4-carbon compound.
NEET UG 2019 — Botany Photosynthesis in Higher Plants
In Hatch and Slack pathway, the primary CO2 acceptor is
Held on 30 Apr 2019 · Verified 9 Jul 2026.
oxaloacetic acid
phosphoglyceric acid
phosphoenol pyruvate
RuBisCO
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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.