Cellular Respiration Quiz

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How many molecules of CO2 would be produced from 5 turns of the citric-acid cycle? (Hint: starting with 5 pyruvate molecules)

15

1 glucose molecule can produce how many molecules of ATP via cellular respiration?

36

The primary role of oxygen in cellular respiration is to

Act as an acceptor for electrons and hydrogen ions

All of the following are functions of the citric acid cycle except

Adding electrons and protons to oxygen, forming water

Cellular respiration harvests the most chemical energy from which of the following?

Chemiosmotic phosphorylation

Where does the process of glycolysis occur?

Cytosol

In chemiosmotic phosphorylation, what is the most direct source of energy that is used to synthesize ATP?

Energy released from the movement of protons through ATP synthase

During aerobic respiration, electrons travel downhill in which sequence?

Food-NADH-electron transport chain-oxygen

Which process in eukaryotic cells will proceed normally whether O2 is present or not?

Glycolysis

A molecule that's had an ATP phosphate group transferred to it

Has an increased chemical reactivity; it is primed to do cellular work

Which of the following complexes in the electron transport chain pump H+ ions?

I III IV

In the absence of oxygen, pyruvate can still proceed through fermentation. Which of the following is a possible product of this pathway?

Lactic acid

Where are the proteins of the electron transport chain located?

Mitochondrial inner membrane

Energy released by the electron transport chain is used to pump H+ into which location?

Mitochondrial inter membrane space

Which of the following electron carriers results in the most energy provided for ATP synthesis?

NAD+

The ATP made during glycolysis is generated by

substrate-level phosphorylation


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