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STD 11 - 11. photosynthesis in higher plants — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 11. photosynthesis in higher plants1 Mark
MCQ
Which of the following statements regarding $C_{4}$-plants is false?
  • ✓
    The primary $CO _{2}$ acceptor is a $5$ -carbon molecule
  • B
    The initial carboxylation reaction occurs in Mesophyll
  • C
    The leaves that fix $CO _{2}$ have two cell types
  • D
    The Mesophyll cells lack Rubisco enzyme
✓

Answer

Correct option: A.
The primary $CO _{2}$ acceptor is a $5$ -carbon molecule
a
In $C_{4}$ plants, primary $C O_{2}$ acceptor is $3$ $C$-compound, phosphoenol pyruvate $(PEP)$ and is present in the mesophyll cells. The enzyme responsible for this fixation is $PEP$ carboxylase or $PEP$case.

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