ICSE BoardEnglish MediumSTD 6BIOLOGYLife on Earth2 Marks
Question
What is respiration ? What are the various stages it involves?
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Answer
The process of toting in oxygen and using it to break down food to release energy, carbon-dioxide and water vapour is called as respiration. It involves two stages.
Breathing or external respiration – It involves taking in oxygen and giving out carbon-dioxide.
Internal or cellular respiration – It involves breaking down of food in each cell using the oxygen taken in.
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