Practice Mechanism of Breathing - 14.2 | 14. BREATHING AND EXCHANGE OF GASES | CBSE 11 Biology
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Mechanism of Breathing

14.2 - Mechanism of Breathing

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is Tidal Volume?

💡 Hint: Think about a restful breath.

Question 2 Easy

What happens when the diaphragm contracts?

💡 Hint: Consider the function of a balloon.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the primary role of the diaphragm during breathing?

A) To open the larynx
B) To contract and increase thoracic volume
C) To transport oxygen

💡 Hint: Think about what happens during inhalation.

Question 2

True or False: Expiration occurs when the internal pressure in the lungs is lower than atmospheric pressure.

True
False

💡 Hint: Recall the relationship between pressure changes during breathing.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Consider a patient with emphysema. Discuss how this condition impacts their breathing mechanism.

💡 Hint: Focus on the structure and function of the lungs.

Challenge 2 Hard

Create a diagram illustrating the pressure changes in the thoracic cavity during breathing.

💡 Hint: Visualize the mechanics for better understanding.

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Reference links

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