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Earn 100

How does gas exchange occurs between alveoli and blood capillaries?

Important Questions on Movement

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Life Science>Change>Movement>Movement in Respiratory System

Vocal cords are found in _____

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Life Science>Change>Movement>Movement in Respiratory System

The middle step between the gaseous exchange at lung’s level and tissue level is _____.

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Life Science>Change>Movement>Movement in Respiratory System
Reason for the diffusion of oxygen from alveoli to blood.
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Life Science>Change>Movement>Movement in Respiratory System
When air is blown from mouth into a test-tube containing lime water, the lime water turned milky due to the presence of
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Life Science>Change>Movement>Movement in Respiratory System
Why are alveoli so small and uncountable in number?
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Life Science>Change>Movement>Movement in Respiratory System
In humans, which of the following is not a step in respiration?
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Life Science>Change>Movement>Movement in Respiratory System

Which contains more carbon dioxide: exhaled air or inhaled air? Why?

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Life Science>Change>Movement>Movement in Respiratory System
What happens when carbon dioxide becomes excessive in the bloodstream?
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Life Science>Change>Movement>Movement in Respiratory System
Cotyledons are also called-
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Life Science>Change>Movement>Movement in Respiratory System
Why does the rate of breathing increase while walking uphill at a normal pace in the mountains? Give two reasons.
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Life Science>Change>Movement>Movement in Respiratory System
The blood leaving the tissues becomes richer in
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Life Science>Change>Movement>Movement in Respiratory System
 Food sometimes enters our wind pipe which results in choking. How does it happen?
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Life Science>Change>Movement>Movement in Respiratory System
What is the normal percentage composition of respiratory gases in the inspired air and expired air respectively?
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Life Science>Change>Movement>Movement in Respiratory System
What is tissue respiration?
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Life Science>Change>Movement>Movement in Respiratory System
Why is it dangerous if someone is trapped in a smoke-filled room? 
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Life Science>Change>Movement>Movement in Respiratory System
How are most of the carbon dioxide transported in blood?
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Life Science>Change>Movement>Movement in Respiratory System
Take 3 test tubes. Fill 3/4th of each with water. Label them X, Y, and Z. Keep a snail in test tube X, a water plant in test tube Y, and in Z, keep snail and plant both. Which test-tube would have the highest concentration of CO2? Give reason in support of your answer.
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Life Science>Change>Movement>Movement in Respiratory System
Air leaves the tiny sacs in the lungs to pass into capillaries. What modification is needed in the statement?
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Life Science>Change>Movement>Movement in Respiratory System
How is oxygen and carbon dioxide transported in human beings?
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Life Science>Change>Movement>Movement in Respiratory System
Explain the role of blood in respiration.