Q5 / 180 · AIIMS 2008 · Botany

Assertion : \(F_1\) particles are present in the inner mitochondrial membrane. Reason : An electron gradient formed on the inner mitochondrial membrane, forms ATP.

  • A
    If both assertion and reason are true and reason is the correct explanation of assertion
  • B
    If both assertion and reason are true but reason is not the correct explanation of assertion
  • Correct answer
    C
    If assertion is true but reason is false
  • D
    If both assertion and reason are false.

Solution

Oxysomes or $\mathrm{F}_0-\mathrm{F}_1$ particles are present on the inner mitochondrial membrane. The $\mathrm{F}_1$ headpiece of oxysome functions as ATP-synthetase which synthesises ATP from ADP and ip (inorganic phosphate) using energy from proton gradient or ATP synthetase becomes active in ATP formation only when there is a proton gradient having high concentration of protons on $\mathrm{F}_0$ side (base) as compared to $F_1$ side (head piece) of $F_0-F_1$ particles or oxysomes.

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

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