Question

a facultative anaerobic organism is able to perform aerobic respiration in the presence of oxygen and fermentation in the absence of oxygen. an example of a facultative anaerobic organism is brewers yeast, which is used in the production of alcoholic beverages. if sealed in a vessel containing oxygen gas, water, and sugar (glucose), the yeast will eventually deplete the oxygen gas. as long as glucose is available, however, the yeast can still survive. brewers yeast use oxygen preferentially because (1 point)

metabolizing oxygen produces more atp than metabolizing glucose.
aerobic respiration is more efficient than fermentation.
metabolizing oxygen is faster than metabolizing glucose
fermentation is more efficient than aerobic respiration

Explanation:

Aerobic respiration produces more ATP per glucose molecule compared to fermentation. This makes it a more efficient process for energy - production. Brewer's yeast preferentially uses oxygen for respiration when it is available because of this higher efficiency.

Answer:

B. aerobic respiration is more efficient than fermentation