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STD 11 - 12. Respiration in plants — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 12. Respiration in plants1 Mark
MCQ
In citric acid cycle first step is
  • ✓
    Acetyl Co-$A$ combines with oxalo acetic acid
  • B
    Acetyl Co-$A$ combines with citric acid
  • C
    Citric acid combines with oxaloacetic acid
  • D
    Citric acid combines with malic acid
✓

Answer

Correct option: A.
Acetyl Co-$A$ combines with oxalo acetic acid
a
In the first reaction of citric acid cycle one molecule of acetyl Co-$A$ combines with $4$ -carbon Oxalo Acetic Acid $(OAA)$ to form $6$ carbon citric acid and Co-$A$ is released

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