Respiratory System for grade5

What is the primary function of the human respiratory system?

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What is the difference between breathing and respiration?

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There are two air ways in respiratory system i:e ___________ and ______.

Where does the exchange of oxygen and carbon dioxide take place in the lungs?

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Why we need more oxygen when we are exercising?

• We need more oxygen during exercise to meet the increased energy demands of our muscles.
• Increased oxygen helps to build muscle mass directly.
• Oxygen is only required for recovery after exercising.
• We need less oxygen to cool down our body during exercise.

Why eating healthy is important for our respiratory system?

• Eating junk food can improve respiratory health.
• Eating healthy is important for our respiratory system because it supports lung function and reduces inflammation.
• A healthy diet has no impact on lung capacity.
• Eating healthy is only important for weight management.