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NEET2019ZoologyBreathing and Exchange of GasesActual

Assertion : If two men expire the same volume of air after normal inspiration, they have the same expiratory capacity. Reason : Expiratory capacity includes tidal volume and inspiratory reserve volume.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

C. If assertion is true but reason is false.

Step-by-step solution

Expiratory capacity (EC) is the total volume of air a person can expire after a normal inspiration. This includes tidal volume and expiratory reserve volume (TV + ERV). Thus, if two men expire the same volume of air after normal inspiration, they have the same expiratory capacity.

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