ICSE Class IX Physical Education Solutions

Displaying 5 out of 12 questions & answers.
Q1.

Define respiration.

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The oxidative breakdown of organic substances with the release of energy and conversion of potential energy into kinetic energy is known as respiration.

Q2.

Give the differences between aerobic and anaerobic respiration.

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Aerobic respirationAnaerobic respiration
1. It occurs in the presence of oxygen.It occurs in the absence of oxygen.
Example: All living organisms including plants and animalsExample: In muscles.

Q3.

How diffusion of respiratory gases takes place in the alveoli?

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Q4.

What is tissue or cellular respiration?

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Q5.

Define Oxygen Debt.

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