ï»¿ On what factors does the Â rate of diffusion in the alveoli depend on? Â  from Biology Breathing and Exchange of Gases Class 11 Assam Board

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On what factors does the Â rate of diffusion in the alveoli depend on? Â

The rate of diffusion depends on the following factors:

i. Partial pressure gradients of O2 (pO2) and CO2 (pCO2),

ii. Solubility of the gases.

iii. Thickness of the diffusion surface.

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70% of carbondioxide is transported as ?

Bicarbonate
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Name the cavity having lungs.

Thoracic cavity.
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What is the partial pressure of oxygen in Â oxygenated blood ?

95 mm Hg
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Oxygen is carried by haemoglobin as?

Oxyhaemoglobin.
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By what amount the solubility of carbondioxide is more than the solubility of oxygen?

20 - 25 times
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