HomeTestsSearchRankProfile
mediumMCQBiologyBiology
1 mark

Which one of the following is a possibility for most of us in regard to breathing, by making a conscious effort?

  1. A
    One can consciously breathe in and breathe out by moving the diaphragm alone, without moving the ribs at all.
  2. B
    The lungs can be made fully empty by forcefully breathing out all air from them.
  3. C
    One can breathe out air totally without oxygen.
  4. D
    One can breathe out air through eustachian tubes by closing both the nose and the mouth.

Solution & Step-by-step Explanation

It is possible to breathe using primarily the diaphragm with minimal rib movement. Note that lungs can never be fully emptied due to residual volume, and exhaled air always contains some oxygen.

Practice this question

Try it yourself before checking the explanation above.

Which one of the following is a possibility for most of us in regard to breathing, by making a conscious effort?
A
One can consciously breathe in and breathe out by moving the diaphragm alone, without moving the ribs at all.
B
The lungs can be made fully empty by forcefully breathing out all air from them.
C
One can breathe out air totally without oxygen.
D
One can breathe out air through eustachian tubes by closing both the nose and the mouth.

Share This Question

Human PhysiologyBreathing

Related Questions

mediumMCQ

The main organelle involved in modification and routing of newly synthesized proteins to their destinations is :

mediumMCQ

There are two opposing views about origin of Modern man. According to one view Homo erectus in Asia were the ancestors of modern man. A study of variations of DNA however suggested African origin of Modern man. What kind of observation on DNA variation could suggest this ?

easyMCQ

The world's highly prized wool yielding 'Pashmina' breed is :

mediumMCQ

Grey crescent is the area :

mediumMCQ

Photosynthesis in C4 plants is relatively less limited by atmospheric CO2 levels because :

mediumMCQ

There exists a close association between the alga and the fungus within a lichen. The fungus :

Ready for a Full Test?

Practice with timed mock tests and track your performance across Biology.

Browse TestsLeaderboard

Discussion