In yeasts and certain other microbes going through , pyruvate is turned into ethyl alcohol (ethanol).
A. glycolysis
B. oxidative phosphorylation
C. chemiosmosis
D. fermentation
E. photosynthesis

Option D) fermentation

In yeasts and certain other microbes going through fermentation, pyruvate is turned into ethyl alcohol (ethanol).

Explanation:

Under anaerobic conditions (in the absence of oxygen), organisms such as yeast and microorganisms convert pyruvate (the end product of glycolysis) into ethanol and carbon dioxide ( CO2 ).

Thus, the process of turning pyruvate to alcohol is known as alcoholic fermentation.

cell regulation is conducted by special proteins.