Question

Which of the following statement(s) is (are) correct?
a) Pyruvate can be converted into ethanol and carbon dioxide by yeast.
b) Fermentation takes place in aerobic bacteria.
c) Fermentation takes place in mitochondria.
d) Fermentation is a form of anaerobic respiration.

• A. (a) and (c)
• B. (b) and (d)
• C. (a) and (d)
• D. (b) and (c)

Answer 1

The correct option is C (a) and (d)

The respiration process can be aerobic or anaerobic. Aerobic respiration occurs in presence of oxygen in mitochondria whereas, anaerobic respiration occurs in absence of oxygen in the cytoplasm. Alcoholic fermentation, which is carried out by unicellular organisms like yeast. Yeast breaks down pyruvic acid anaerobically into ethanol and carbon dioxide in the cytoplasm.

So, the correct answer is option C.