(A) The diffusion membrane of the lungs is composed of three layers: the thin squamous epithelium of the alveoli,the endothelium of the alveolar capil

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Squamous epithelium + endothelium of blood vessel

(A) The diffusion membrane of the lungs is composed of three layers: the thin squamous epithelium of the alveoli,the endothelium of the alveolar capillaries,and the basement substance in between them.Therefore,the air in the alveoli is separated from the blood in the capillaries by the squamous epithelium of the alveoli and the endothelium of the blood vessel.

Class 11 Biology Breathing and Exchange of Gases Exchange of gases

Medium

In lungs,the air is separated from the venous blood through:

AIPMT 1997 All AIPMT

A
Squamous epithelium + endothelium of blood vessel
B
Squamous epithelium + tunica media blood vessel
C
Transitional epithelium + tunica external blood vessel
D
None of these

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Class 11

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Breathing and Exchange of Gases

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Exchange of gases

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AIPMT 1997 Paper All AIPMT years →

Solubility of $CO_2$ is . . . . . . times higher than that of $O_2$.

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Arrange the appropriate pair.
Column-$I$ Column-$II$ (Amount of $CO_2$ in $mm \ Hg$)
$(a)$ Alveoli $(1)$ $40$
$(b)$ Tissue $(2)$ $45$
$(c)$ Blood without $O_2$ (Deoxygenated) $(3)$ $40$
$(d)$ Blood with $O_2$ (Oxygenated) $(4)$ $45$

Medium

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What does the presence of a large number of alveoli around the alveolar duct opening into the bronchioles in mammalian lungs indicate?

Medium

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Blood leaving the lungs is rich in:

Medium

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The diffusion membrane of the lungs,through which the exchange of gases occurs,is made up of which of the following layers?

MediumAIPMT 1997

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Column-$I$	Column-$II$ (Amount of $CO_2$ in $mm \ Hg$)
$(a)$ Alveoli	$(1)$ $40$
$(b)$ Tissue	$(2)$ $45$
$(c)$ Blood without $O_2$ (Deoxygenated)	$(3)$ $40$
$(d)$ Blood with $O_2$ (Oxygenated)	$(4)$ $45$

In lungs,the air is separated from the venous blood through:

Similar Questions

Solubility of $CO_2$ is . . . . . . times higher than that of $O_2$.

Arrange the appropriate pair.Column-$I$Column-$II$ (Amount of $CO_2$ in $mm \ Hg$)$(a)$ Alveoli$(1)$ $40$$(b)$ Tissue$(2)$ $45$$(c)$ Blood without $O_2$ (Deoxygenated)$(3)$ $40$$(d)$ Blood with $O_2$ (Oxygenated)$(4)$ $45$

What does the presence of a large number of alveoli around the alveolar duct opening into the bronchioles in mammalian lungs indicate?

Blood leaving the lungs is rich in:

The diffusion membrane of the lungs,through which the exchange of gases occurs,is made up of which of the following layers?

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Arrange the appropriate pair.
Column-$I$ Column-$II$ (Amount of $CO_2$ in $mm \ Hg$)
$(a)$ Alveoli $(1)$ $40$
$(b)$ Tissue $(2)$ $45$
$(c)$ Blood without $O_2$ (Deoxygenated) $(3)$ $40$
$(d)$ Blood with $O_2$ (Oxygenated) $(4)$ $45$