What is the main purpose of respiration?
Answer and explanation
Correct answer: To release energy from food
Respiration is a life process in which food molecules, especially glucose, are broken down to release usable energy. In aerobic respiration, glucose reacts with oxygen and produces carbon dioxide, water and energy; in anaerobic respiration, breakdown is incomplete and less energy is released. This energy supports movement, growth, repair and other cellular activities. The other options are unrelated functions, so option A is correct.
Frequently asked questions
What is the correct answer to this question?
To release energy from food
Why is this the correct answer?
Respiration is a life process in which food molecules, especially glucose, are broken down to release usable energy. In aerobic respiration, glucose reacts with oxygen and produces carbon dioxide, water and energy; in anaerobic respiration, breakdown is incomplete and less energy is released. This energy supports movement, growth, repair and other cellular activities. The other options are unrelated functions, so option A is correct.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Life Processes. Topic: Respiration.
