The end product of anaerobic respiration in humans and other mammals is:
Correct answer: C. Lactic acid
- A. Pyruvic acid
- B. Ethanol
- C. Lactic acid
- D. Glucose
Explanation
The end product of anaerobic respiration in humans and other mammals is lactic acid. In the absence of sufficient oxygen, cells resort to anaerobic respiration to generate energy. Anaerobic respiration involves the incomplete breakdown of glucose and results in the production of lactic acid as a byproduct. The specific process is known as lactic acid fermentation. During this process, pyruvate, which is an intermediate product of glycolysis, is converted into lactic acid. This reaction helps to regenerate NAD+ from NADH, allowing glycolysis to continue in the absence of oxygen.
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About Bioenergetics
Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
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