Official Class 11 Biology Worksheets: Chapter 14 Breathing and Exchange of Gases
Review targeted practice sets for Class 11 Biology Chapter 14 Breathing and Exchange of Gases. Built according to official educational guidelines for the 2026-27 academic year, these downloadable worksheets support daily revision and core concept reinforcement.
Chapter-wise Practice Material: Chapter 14 Breathing and Exchange of Gases
Navigate directly to the printable exercises for Chapter 14 Breathing and Exchange of Gases using the digital viewer below. Each practice set allows students to isolate specific topics for thorough review and uninterrupted practice alongside standard textbooks.
BREATHING AND EXCHANGE OF GASES
→ Very Short Answer Questions
1. Name the organ in human respiratory system which produces sound.
2. Give the name and function of a fluid filled double membranous layer which surrounds the lungs.
3. Name the types of respiratory organs in the following organisms:
a) Earthworms b) Insects c) Terrestrial organisms.
4. How many oxygen molecules can be carried out by one haemoglobin molecules.
5. Food or water does not normally enter the respiratory passage. Give reason.
6. Which organ of our respiratory system acts as primary site of exchange of gases?
7. Cigarette smoking causes emphysema. Give reason.
8. Write the function of pleural fluid.
9. Name the principle of exchange of gases.
10. Why does exchange of gases continue to occur in the lungs even if you hold your breath for 30 seconds.
11. Define the following: a) Tidal volume b) Residual volume c) Vital capacity d) Total lung capacity
→ Short Answer Questions
12. Enumerate the harmful effects of various occupational respiratory disorders. What precautionary measures should a person take to prevent such disorders?
13. Mention the partial pressure of oxygen and carbon dioxide at different parts involved in diffusion in comparison to those in atmosphere.
14. Explain the role of neural system in regulation of respiration in human.
15. Explain in brief the oxygen dissociation curve? Write its significance.
16. List the factors facilitating the formation of oxyhaemoglobin.
17. Differentiate between Vital capacity and Total lung capacity
18. Write the major transport mechanisms of oxygen and carbon dioxide in our body.
19. What are the two factors that contribute towards the dissociation of oxyhaemoglobin in the arterial blood to release molecular oxygen in an active tissue?
20. Enumerate the three major forms by which the carbon dioxide is carried in the blood.
Draw labeled diagrams of:
A) A section of an alveolus with a pulmonary capillary
B) Inspiration and Expiration
C) Human respiratory system.
D) Exchange of gases at the alveolus and the body tissues.
Please click on below link to download CBSE Class 11 Biology Breathing And Exchange of Gases Worksheet Set C
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Practice Worksheet and Study Resources for Class 11 Biology Chapter 14 Breathing and Exchange of Gases
Chapter Practice Questions for Class 11 Biology
Access structured practice worksheets for Chapter 14 Breathing and Exchange of Gases designed in alignment with the latest CBSE curriculum for Class 11 Biology. These printable problem sets help students build accuracy and prepare effectively for school tests.
Expert Practice Material for Class 11 Biology
Each worksheet is structured around standard CBSE textbooks, allowing students to check their working steps and correct mistakes early in their revision.
Complete Your Chapter Revision
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FAQs
You can download the teacher-verified PDF for CBSE Class 11 Biology Breathing And Exchange of Gases Worksheet Set 03 from StudiesToday.com. These practice sheets for Class 11 Biology are designed as per the latest CBSE academic session.
Yes, our CBSE Class 11 Biology Breathing And Exchange of Gases Worksheet Set 03 includes a variety of questions like Case-based studies, Assertion-Reasoning, and MCQs as per the 50% competency-based weightage in the latest curriculum for Class 11.
Yes, we have provided detailed solutions for CBSE Class 11 Biology Breathing And Exchange of Gases Worksheet Set 03 to help Class 11 and follow the official CBSE marking scheme.
Daily practice with these Biology worksheets helps in identifying understanding gaps. It also improves question solving speed and ensures that Class 11 students get more marks in CBSE exams.
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