CBSE-XI-Biology
17: Breathing and Exchange of Gases
Qstn# I-14 Prvs-Qstn
- #14What is Tidal volume? Find out the Tidal volume (approximate value) for a healthy human in an hour.
Ans : Tidal volume is the volume of air inspired or expired during normal respiration.
It is about 6000 to 8000 mL of air per minute.
The hourly tidal volume for a healthy human can be calculated as:
Tidal volume = 6000 to 8000 mL/minute
Tidal volume in an hour = 6000 to 8000 mL × (60 min)
= 3.6 × 105 mL to 4.8 × 105 mL
Therefore, the hourly tidal volume for a healthy human is approximately 3.6 × 105 mL to 4.8 × 105 mL.