Acetyl is used during 

A. the Krebs cycle.
B. the electron transport system.
C. glycolysis.
D. fermentation.


A. the Krebs cycle.

Biology & Microbiology

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Over 50% of the world's toys are produced in China alone

Indicate whether this statement is true or false.

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Which statement does not apply to carbon dioxide?

a. It is released in the burning of fossil fuels. b. It contributes to ozone destruction. c. It is absorbed by plants. d. It contributes to global warming. e. It is increasing in abundance in the atmosphere.

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The energy driving the global water cycle is provided by

A) wind. B) tides. C) rotation of the Earth on its axis. D) solar energy.

Biology & Microbiology

What important metabolic intermediate does not cross the inner membrane of the mitochondria?

A. Pyruvate B. ATP C. Acetyl-CoA D. Oxygen

Biology & Microbiology