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What is the main purpose of respiration?

Answer and explanation

Correct answer: To obtain energy from food

Respiration is a life process that releases usable energy from food. During respiration, complex food molecules such as glucose are broken down, usually with oxygen and sometimes without it, and the released energy supports movement, growth, repair, transport and other cellular activities. Therefore, obtaining energy from food is the correct purpose. Urine formation, blood filtration and chewing belong to excretion, kidney function and digestion, not respiration.

Related tags

RespirationEnergyLife ProcessesWorld Of LivingScienceClass 10 Mcq

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