Many important questions are formed in competitive exams like NEET and boards from Class 11 Biology Chapter 17. Breathing and Exchange of Gases is the seventeeth chapter in the Class 11 NEET syllabus for Biology. Below, we have provided Important Questions from Class 11 Biology Chapter 17 Breathing and Exchange of Gases for your NEET 2023 preparation. You can check it here for revision purposes.
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Breathing and Exchange of Gases Class 11 NEET Questions and Answers
We’ve compiled a list of essential questions about the Breathing and Exchange of Gases biology class 11 chapter 16 that you should not miss while studying for your NEET Exams.
Breathing and Exchange of Gases MCQ for NEET
Volume of air that will remain in lungs after a normal expiration is
Under normal physiological conditions, amount of O2 delivered by 100 mL of oxygenated blood to tissues is approximately
What is the function of pneumotaxic centre?
A person is diagnosed with damaged alveolar walls due to severe cigarette smoking. He might be suffering from
Alveolar capillaries are made up of
Inspiration can occur if
All of the following constitutes conducting part of respiratory system except
Lungs are situated in thoracic chamber which is formed
Average volume of air that can be forcibly inspired is
Which of the following initiates the process of inspiration?
Breathing and Exchange of Gases Match the Following Questions for NEET
Match column I with column II.
| Column I | Column II |
|---|---|
| A. Inspiratory capacity | (i) TV + IRV |
| B. Expiratory capacity | (ii) ERV + RV |
| C. Vital capacity | (iii) ERV + TV |
| D. Functional residual capacity | (iv) IC + ERV |
A. A-(i), B-(iii), C-(iv), D-(ii)
Breathing and Exchange of Gases Assertion and Reason Questions for NEET
In each of the following questions, a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it. Of the statements, pick the correct answer as :
Assertion : About 97 per cent of O2 is transported by RBCs in blood. Reason : Oxyhaemoglobin is formed as a result of high pO2
Assertion : Larynx helps in sound production. Reason : Larynx is made up of cartilage
Assertion : Intrapulmonary pressure increase slightly above atmospheric pressure causing expiration. Reason : Relaxation of diaphragm and intercostal muscles reduces size of thoracic cavity
For more Assertion Reason Questions, Check –
Breathing and Exchange of Gases Figure-Based Questions for NEET
Observe the given diagram and answer the following questions.
(a) Identify A, B, C and D.
A. A-Epiglottis, B-Alveoli, C-Bronchus, D-Pleura
(b) Write the function of ‘A’ and ‘D’.
A. Epiglottis (A) prevents (D) entry of food into the larynx and double membrane pleurae (D) encloses lungs. Space between two pleurae are filled with pleural fluid that reduces friction on the lung-surface.
(c) Discuss briefly about B.
A. Each terminal bronchiole gives rise to a number of very thin irregular-walled and vascularised bag-like structures called alveoli. Alveoli and their ducts form the respiratory or exchange part of the respiratory system which is the site of actual diffusion of O2 and CO2 between blood and atmospheric air.
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