science
Grade-7
Easy
Question
______________ requires oxygen and releases carbon dioxide.
- Photosynthesis
- Cellular respiration
- Fermentation
- None of these
Hint:
- Cellular respiration requires oxygen and releases carbondioxide
The correct answer is: Cellular respiration
- Cellular respiration is the process in which organisms use oxygen to break down food molecules.
- This causes release of energy for life sustaining activities
- The product formed are water, carbondioxide, ATP.
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