NEETBotanyRespiration in Plants
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Cytochrome c is a small protein attached to the inner surface of the inner mitochondrial membrane that acts as a mobile carrier for transfer of electrons between complex III and IV. Reason (R): Ubiquinol is oxidised with the transfer of electrons to cytochrome c via cytochrome bc₁ complex. In the l
Options
- ABoth (A) and (R) are true and (R) is the correct explanation of (A)
- BBoth (A) and (R) are true but (R) is not the correct explanation of (A)
- C(A) is true but (R) is false
- D(A) is false but (R) is true
Correct answer
D. (A) is false but (R) is true
Step-by-step solution
Assertion (A) is false because cytochrome c is a small protein attached to the outer surface (not the inner surface) of the inner mitochondrial membrane. Reason (R) is true because ubiquinol (reduced ubiquinone) is indeed oxidised with the transfer of electrons to cytochrome c via the cytochrome bc₁ complex (Complex III). Therefore, (A) is false but (R) is true. Answer: (A) is false but (R) is true