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Is placental ...

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Is placental barrier allow diffusion of gases between mother & embryo? How? during diffusion mixing of blood can occur?

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Q. Mixing of two gases by diffusion is:

What is internal Respiration?

It is diffusion of gases from lungs into the blood stream.

OR

It is diffusion of gases from lungs into the blood stream. and diffusion of gases from blood streams and lungs.

Q. Carbon monoxide and chlorine gases are allowed to diffuse under identical conditions. The relation between the rates of diffusion of the two will be:

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I. Breathing or pulmonary ventilation
II. Diffusion across the alveolar membrane
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IV. Utilisation of

O_{2}

by cells
V. Diffusion of

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C O_{2}

between blood and tissues

Q. Why diffusion occurs more quickly in gases?

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