What is the main reason more energy is released in aerobic respiration?
Answer and explanation
Correct answer: More complete breakdown of glucose in the presence of oxygen
Aerobic respiration uses oxygen to oxidise glucose through a series of controlled cellular reactions. Glucose is broken down much more completely into carbon dioxide and water, so considerably more ATP is produced than in anaerobic respiration, where breakdown is incomplete. Hence option A gives the governing reason. The other choices describe storage, absence of oxygen, or urine and cannot explain energy release.
Frequently asked questions
What is the correct answer to this question?
More complete breakdown of glucose in the presence of oxygen
Why is this the correct answer?
Aerobic respiration uses oxygen to oxidise glucose through a series of controlled cellular reactions. Glucose is broken down much more completely into carbon dioxide and water, so considerably more ATP is produced than in anaerobic respiration, where breakdown is incomplete. Hence option A gives the governing reason. The other choices describe storage, absence of oxygen, or urine and cannot explain energy release.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Life Processes. Topic: Respiration.
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