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BIO NMDCAT Cytoplasmic Organelles
nmdcat.online July 4, 2026

67. The structural preservation of the high electrical potential across the inner mitochondrial membrane requires the complete absence of

A. Active electron transport proteins
B. Nonspecific proton leaks across the bilayer
✓
C. Oxygen molecules in the matrix
D. Circular DNA molecules

📝 Explanation

Proton leaks collapse the electrochemical gradient across the inner membrane, directly short-circuiting ATP synthesis.

📖 Additional Information

  • Active electron transport proteins
  • Nonspecific proton leaks across the bilayer
  • Oxygen molecules in the matrix
  • Circular DNA molecules

Proton leaks collapse the electrochemical gradient across the inner membrane, directly short-circuiting ATP synthesis.

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