A) outer membrane
B) inner membrane
C) inter membrane space
D) matrix
Correct Answer: C
Solution :
During the passage of two electrons from one an- electron carrier (NADH) to another on ETC, enough energy is liberated that pumps out three pairs of protons \[({{H}^{+}})\] from matrix, (inner chamber) to outer chamber (inter membrane space) of mitochondria. The accumulation of protons in inter membrane space results their higher concentration than in the matrix creating a proton gradient \[(\Delta pH)\] and electric potential \[(\Delta \psi )\] across the membrane.
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