Q29 / 180 · NEET 2019 (Odisha) · Botany

In Hatch and Slack pathway, the primary $\mathrm{CO}_2$ acceptor is

  • A
    oxaloacetic acid
  • B
    phosphoglyceric acid
  • Correct answer
    C
    phosphoenol pyruvate
  • D
    RuBisCO

Solution

In Hatch and Slack pathway, the primary $\mathrm{CO}_2$ acceptor is phosphoenol pyruvate. This occurs in $\mathrm{C}_4$-plants. Phosphoenol pyruvate, a 3 -carbon compound, accepts $\mathrm{CO}_2$ and forms oxaloacetic acid which is a 4-carbon compound.

Hence, the correct answer is option: 'C'.

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