Why does aerobic respiration give more energy than anaerobic respiration?
Answer and explanation
Correct answer: Because glucose breaks down completely in the presence of oxygen
The governing concept is complete oxidation of glucose. In aerobic respiration, oxygen acts as the final electron acceptor, allowing glucose to be broken down through the full pathway into carbon dioxide and water. This releases much more usable energy than partial breakdown. Thus option A is correct; B reverses the process, and C and D do not explain the energy difference.
Frequently asked questions
What is the correct answer to this question?
Because glucose breaks down completely in the presence of oxygen
Why is this the correct answer?
The governing concept is complete oxidation of glucose. In aerobic respiration, oxygen acts as the final electron acceptor, allowing glucose to be broken down through the full pathway into carbon dioxide and water. This releases much more usable energy than partial breakdown. Thus option A is correct; B reverses the process, and C and D do not explain the energy difference.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Life Processes. Topic: Respiration.
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