Question

which is a similarity between alcohol fermentation and aerobic respiration?
both require oxygen.
both require light energy.
both start with glycolysis.
both produce alcohol.

Explanation:

• Alcohol fermentation is an anaerobic process (does not require oxygen), while aerobic respiration requires oxygen. So "Both require oxygen" is incorrect.
• Neither alcohol fermentation nor aerobic respiration require light energy. Photosynthesis requires light energy. So "Both require light energy" is incorrect.
• Alcohol fermentation produces alcohol (and carbon dioxide), while aerobic respiration produces carbon dioxide and water. So "Both produce alcohol" is incorrect.
• Both alcohol fermentation and aerobic respiration start with glycolysis (the breakdown of glucose into pyruvate).

Answer:

C. Both start with glycolysis.