Question

question 3
in the absence of oxygen, humans reduce pyruvate into:
a alcohol
b pgal
c pyruvic acid
d lactate
e acetaldehyde

Explanation:

In humans, anaerobic respiration (absence of oxygen) occurs in muscle cells. Pyruvate is reduced to lactate in this process to regenerate NAD+ for glycolysis to continue.

Answer:

D. Lactate