Intimately tied to the circulatory system is the respiratory system. Within the

Question

Intimately tied to the circulatory system is the respiratory system. Within the mammalian respiratory system (lungs), where does diffusion occur?

movement of oxygen from alveoli into red blood cells

movement of excretory products into major arteries

exhalation of air out of the lungs

entry of air into the lungs

movement of carbon dioxide into red blood cells

movement of oxygen from alveoli into red blood cells

movement of excretory products into major arteries

exhalation of air out of the lungs

entry of air into the lungs

movement of carbon dioxide into red blood cells

Explanation / Answer

Movement of oxygen from alveoli into red blood cell.

Movement of co2 into redblood cell

Note-,the diffusion is transport of molecule from one part to other when ocygen is inhaled it reaches alveoli from where it is diffused into blood , the co2 produced is again diffused into blood by tissevto transport back to alveoli for exhalation.

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