Question

7.3 Describe the journey of carbon dioxide from the time it is released by a cell till it is exhaled.​

Answer 1

While oxygen moves from the capillaries and into body cells, carbon dioxide moves from the cells into the capillaries. Carbon dioxide is brought, through the blood, back to the heart and then to the lungs. Then it is released into the air during exhalation.

Answer 2

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Question

Describe the journey of carbon dioxide from the time it is released by a cell till it is exhaled.

Answer

❏ Carbon dioxide is released from cells as by product of respiration.

❏ This carbon dioxide then binds with the haemoglobin in blood and gets transported through veins to the heart.

❏ The heart pumps the carbon dioxide rich blood to the lungs through the pulmonaryartery.

❏ The carbon dioxide is exchanged for oxygen in the lungs.It is then released through exhalation.

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More to know

What is carbon dioxide ?

Carbon dioxide is a chemical compound composed of one carbon and two oxygen atoms.It is often reffered to by its formula CO2.

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