NEET · BiologyHard
In the electron transport system of mitochondria, how many protons are translocated across the inner membrane for every pair of electrons passing from to ?
- A.6 protons
- B.10 protons
- C.12 protons
- D.8 protons
Show correct answer & step-by-step solution
Correct answer: B — 10 protons
Solution
- Complex I translocates 4 protons per .
- Complex III translocates 4 protons per pair of electrons.
- Complex IV translocates 2 protons per pair of electrons.
- Total protons translocated = $4 + 4 + 2 = 10$.
- Hence the answer is (B).
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