NEET2026BiologyChapterActual
Which of the following statements correctly describes the energy yield during the process of alcoholic fermentation by yeast?
Options
- AThe entire energy of glucose is released but mostly lost as heat rather than being stored.
- BLess than seven per cent of the energy in glucose is released, and not all of it is trapped as ATP.
- CApproximately thirty-eight molecules of ATP are generated per molecule of glucose oxidized.
- DMore than half of the energy in glucose is released and efficiently trapped as high-energy bonds.
Correct answer
B. Less than seven per cent of the energy in glucose is released, and not all of it is trapped as ATP.
Step-by-step solution
In both lactic acid and alcoholic fermentation, the incomplete oxidation of glucose occurs under anaerobic conditions. During these processes, not much energy is released. Less than seven per cent of the energy in glucose is released, and not all of it is trapped as high-energy bonds of ATP. Therefore, the statement that less than seven per cent of the energy in glucose is released and not all of it is trapped as ATP correctly describes the energy yield during alcoholic fermentation by yeast. Answer: Less than seve