Question

What is the similarity between fermentation in yeast and anaerobic respiration taking place in muscle cells of humans?

• A. Take place in mitochondria
• B. Lactic acid is formed
• C. Ethanol is formed
• D. Take place in Cytoplasm

Answer 1

Answer:

D. Take place in Cytoplasm

• The correct answer is Take place in Cytoplasm.

• During fermentation in yeast, glycolysis happens first, followed by the conversion of pyruvate to ethanol and carbon dioxide, which regenerates the electron carrier NAD+ for use in more glycolysis

• Glycolysis: This is the initial stage of both cellular respiration and fermentation.

• In glycolysis, a glucose molecule (a 6-carbon sugar) is broken down into two molecules of pyruvate (a 3-carbon molecule).

• This process also produces a small net gain of ATP (adenosine triphosphate) and reduces NAD+ (nicotinamide adenine dinucleotide) to NADH.