What Would Happen to the ETC and Oxidative Phosphorylation Pathway

question 2

Multiple Choice

What would happen to the ETC and oxidative phosphorylation pathway in the presence of excess NADH if the mitochondrial matrix were not closed,but opened up to the cytoplasm?

• A) The ETC complexes would function as normal, but no ATP would be made.
• B) The ETC and synthesis of ATP would continue as normal.
• C) The ETC complexes would transfer electrons from NADH to O₂, but no protons would be pumped.
• D) The NADH would react directly with O₂, generating excess heat.

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Definitions:

Sciatica

A condition involving pain that travels along the path of the sciatic nerve, which extends from the lower back through the hips and buttocks and down each leg.

Nerve Tract

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Inflammation

A biological response to harmful stimuli, such as pathogens or damaged cells, characterized by redness, swelling, heat, and sometimes pain.

Sensation Loss

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