The Final Electron Acceptor at the End of the Electron

question 56

Multiple Choice

The final electron acceptor at the end of the electron transport chain is ________, resulting in formation of ________.

• A) phosphate; ATP
• B) CoA; acetyl-CoA
• C) oxygen; water
• D) hydrogen; carbon dioxide
• E) pyruvate; oxygen

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Definitions:

Fovea

A small depression in the retina of the eye where visual acuity is highest due to the concentration of cones.

Cones

Photoreceptor cells in the retina of the eye responsible for color vision and functioning best in relatively bright light.

Rods

Photoreceptor cells in the retina of the eye that are sensitive to low light levels and contribute to black-and-white vision.

Trichromatic Theory

The theory of color vision suggesting that three types of cones in the retina each make a maximal chemical response to one of three colors—blue, green, or red.