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Solution - Define Vital Capacity. What is Its Significance - Respiratory Volumes and Capacities

ConceptRespiratory Volumes and Capacities

Question

Define vital capacity. What is its significance?

Solution 1

Vital capacity is the maximum volume of air that can be exhaled after a maximum inspiration. It is about 3.5 – 4.5 litres in the human body. It promotes the act of supplying fresh air and getting rid of foul air, thereby increasing the gaseous exchange between the tissues and the environment.

Solution 2

Vital capacity is defined as the maximum volume of air a person can breathe in after a forced expiration or the maximum volume of air a person can breathe out after a forced inspiration. It represents the maximum amount of air one can renew in the respiratory system in a single respiration. Thus, greater the vital capacity more is the energy available to the body.

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APPEARS IN

NCERT Biology Textbook for Class 11
Chapter 17: Breathing and Exchange of Gases
Q: 1 | Page no. 277

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Reference Material

Solution for question: Define Vital Capacity. What is Its Significance concept: Respiratory Volumes and Capacities. For the courses CBSE (Arts), CBSE (Commerce), CBSE (Science)
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