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Question

Identify the correct statement about respiration.
1. Without oxygen, cellular respiration is not possible in humans.​
2. Pyruvate is produced only in the case of aerobic respiration.​
3. Anaerobic respiration is possible in yeast and humans.​
4. The energy produced during cellular respiration is stored as ATP.

A
1, 2 & 3
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B
3 & 4
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C
1 & 4
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D
2 & 3
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Solution

The correct option is B 3 & 4
Cellular respiration, whether aerobic or anaerobic, is a metabolic process which converts nutrient into energy (stored in the form of ATP) and waste products. ​ Aerobic respiration uses the oxygen gathered during the process of respiration to facilitate ATP synthesis. ​
It always takes place in the presence of oxygen. Whereas, anaerobic respiration occurs in absence/lack of oxygen. In anerobic respiration yeast produces ethanol as end product whereas in muscles lactic acid is produced as end product.​

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