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NEET2018BotanyPhotosynthesis in Higher PlantsActual

Which of these is incorrect for C ₄ -plants?

Options

  1. AKranz anatomy
  2. BCO ₂ acceptor is PEP
  3. CPEPCase in mesophyll
  4. DRuBisCO in mesophyll

Correct answer

D. RuBisCO in mesophyll

Step-by-step solution

Among the given options, option (4) is incorrect about C ₄ -plants. The mesophyll cells of C ₄ -plants do not possess RuBisCO enzyme. C ₄ -plants show Kranz anatomy. In these plants, the initial fixation of CO ₂ occurs in mesophyll cells. The primary acceptor of CO ₂ is Phosphoenol Pyruvate or PEP. It combines with CO ₂ in the presence of PEP carboxylase or PEPCase to form oxaloacetic acid or oxaloacetate.

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