Reference no: EM132931917

1) Cellular respiration is a series of redox reactions. In cellular respiration:

Oxygen is reduced

Glucose is oxidized

Carbon dioxide and water are produced

All of the above

2) Aerobic cellular respiration proceeds in this series:

Glucose-->acetyl-CoA-->pyruvate-->CO2

Glucose -->pyruvate-->acetyl-CoA-->CO2

Glucose-->pyruvate-->acetaldehyde-->ethanol

Glucose-->oxaloacetate-->pyruvate-->CO2

3) The primary function of fermentation is the regeneration of NAD+. Why is this important?

NAD+ directly contributes to creating the proton gradient

NAD+ is the final electron acceptor

NAD+ is a cofactor for the production of FADH2

NAD+ allows glycolysis to run in the absence of oxygen, thus continuing to produce ATPs

4) Fermentation produces more ATPs than aerobic respiration.

True

False

5) Creating a proton gradient is essential in cellular respiration. Why?

The proton gradient allows for carbon fixation.

The proton gradient directly promotes the production of water.

Leakage of protons through the phospholipid membrane helps to synthesize ATPs.

The proton gradient drives the citric acid cycle.

None of the above are correct.