Respiration and Energy Transfer — Biology STD 11 Science — Question
Maharashtra BoardEnglish MediumSTD 11 ScienceBiologyRespiration and Energy Transfer1 Mark
Question
Why do organisms take up oxygen and release carbon dioxide?
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Answer
a. At cellular level, organisms require energy to carry out different metabolic activities. b. The energy is made available by oxidizing/breaking the food. Therefore, oxygen is required by aerobic organisms for breaking the food and carbon dioxide is released as a byproduct of oxidation.
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