Question

Pyruvate is the product of glycolysis. If there is no oxygen available to cells of the human
body, what becomes of pyruvate?
a. alcohol
b. lactic acid
c. CO2
d. a and c​

Answer 1

Answer:

When oxygen is not present, pyruvate will undergo a process called fermentation. In the process of fermentation the NADH + H+ from glycolysis will be recycled back to NAD+ so that glycolysis can ... One type of fermentation is alcohol ... pyruvates are converted to two lactic acid ... Our muscle cells can undergo this process.

(d)

Answer 2

If there is no oxygen available to cells of the human  body means Pyruvate becomes Lactic acid.

Explanation:

• Option (B) Lactic acid is correct answer.
• If there isn't enough oxygen for aerobic respiration to take place, pyruvate will ferment into lactic acid.
• Pyruvate should be turned to lactic acid in the lack of oxygen (anaerobic), as this is the only process that can renew NAD+, allowing continued glycolysis.
• Long-term oxygen deficiency causes cell death and, finally, the death of the organism.