Question:
On high mountains, difficulty in breathing if due to:
On high mountains, difficulty in breathing if due to:
Updated On: Jul 28, 2022
- decrease in partial pressure of $O_{2}$
- decrease in amount of $O_{2}$
- increase in $CO_{2}$ concentration
- all of the above
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
On high mountains, difficulty in breathing is due to decrease in partial pressure.
Was this answer helpful?
0
0
Top JIPMER Biology Questions
- Cause of mimicry is:
- Biologically most resistant plant material is:
- Mutations are caused due to:
- $2n- 1$ condition is called:
- In gametophyte of fem:
View More Questions
Top JIPMER Questions
- Cause of mimicry is:
- Biologically most resistant plant material is:
- Mutations are caused due to:
- $2n- 1$ condition is called:
- A body projected with an initial velocity horizontally has kinetic energy K. If it is projected at an angle $ 45{}^\circ $ the initial kinetic energy will be:
View More Questions
Concepts Used:
Mechanism of Breathing
The air that we breathe in and breathe out of the lungs varies in its pressure. So basically when there is a fall down in air pressure the alveolar spaces drop down and the air enters the lungs (inspiration) as the pressure of the alveoli surpasses the atmospheric pressure, the air that is blown from the lungs (expiration). The rate of flow of air is in proportion to the magnitude of the pressure difference.
The breathing mechanism involves the following two processes:
- Inspiration - A contraction of muscles attached to the ribs on the outer side which pulls out the ribs and results in the expansion of the chest cavity is the process of inspiration.
- Expiration - The expiration process is considered once after the gaseous exchange takes place in the lungs and the air is expelled out. And the expulsion of air is called expiration.
Read More: Mechanism of Breathing