Class 11 Biology · Chapter 10 · Test 2
Ventilation and Gas Transport
61 MCQs. This part covers the mechanism of breathing (inspiration and expiration) and the control of breathing. It also covers the transport of oxygen and carbon dioxide, carbon monoxide poisoning, and the respiratory pigments haemoglobin and myoglobin, along with the related exercise MCQs.
61 questions · 45 min · 61 marks
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Sample questions
The first 5 of 61. Try each one, then tap to see the answer.
Question 1
The movement of air in and out of the body is called:
- ABreathing or ventilation
- BRespiration
- CDigestion
- DCirculation
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Answer: A
The movement of air in and out of the body is breathing or ventilation.
Question 2
Air moves in and out of lungs by creating:
- ANegative and positive pressures
- BOnly positive pressure
- COnly heat
- DOnly suction by lungs
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Answer: A
Lungs do not draw in air themselves; pressures are created by muscles.
Question 3
The dome-like large skeletal muscle separating the thoracic cavity from the abdomen is the:
- ADiaphragm
- BIntercostal muscle
- CBiceps
- DPectoral muscle
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Answer: A
The diaphragm separates the thoracic cavity and abdomen.
Question 4
Intercostal muscles are present:
- ABetween each pair of ribs
- BBelow the diaphragm
- CIn the neck
- DIn the abdomen
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Answer: A
They are present between each pair of ribs.
Question 5
It is harder to breathe at high altitudes because:
- AA greater increase in thorax volume is required to lower lung pressure
- BOxygen is absent
- CLungs shrink
- DDiaphragm stops working
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Answer: A
Atmospheric pressure is lower so a greater thorax increase is needed.
More tests in Human Respiratory System
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