For One Electron Entering the Electron Transport Chain at Complex

question 93

Multiple Choice

For one electron entering the electron transport chain at complex I,how many times is it handed off between redox active cofactors on its way through the enzyme complexes to end up on O₂?

• A) ~2000
• B) ~200
• C) ~20
• D) ~2

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Definitions:

Foreskin

The skin fold that can be pulled back, covering the tip of the penis.

Phimosis

A condition where the foreskin of the penis is too tight to be pulled back over the glans.

PID

Pelvic Inflammatory Disease, a condition affecting the female reproductive organs due to infection.

FTA-ABS

A blood test used to detect the presence of antibodies to Treponema pallidum, the bacterium that causes syphilis.