Alcoholic fermentation

Practice Question Solving
1

Which of the following statements about alcoholic fermentation are correct?

I. It occurs in some yeasts and hepatocytes.
II. It’s a mechanism to reduce NAD+.
III. Acetaldehyde is an intermediate product.
IV. A decarboxylase plays a role in the process.

A. III and IV

B. I and II

C. II and III

D. I, II and III

E. II, III and IV

2

Hi!
@ChuHtet would you mind sharing the answer as i have got one but ain’t sure whether it’s correct or not.

3

The answer says 3 and 4 only.

4

Hi!
we can eliminate options to check which ones are correct:

  1. Alcoholic fermentation do occurs in Yeasts but hepatocytes don’t make sense as Humans cannot ferment alcohol in their own bodies.
  2. It’s mechanism for the generation of NAD+ from NADH so that it can be used in glycolysis for ATP generation.
  3. Acetaldehyde is formed as a intermediate: 2 pyruvate---->acetaldehyde------>2ethyl alcohol.
  4. Decarboxylase do plays a role it releases 2 CO2 to form acetaldehyde from 2 pyruvate.
    Hope it makes sense:)
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5

Thank you very much. This explains well.

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