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Question
The blood leaving the tissues becomes richer in ______.
Options
carbon dioxide
water
haemoglobin
oxygen
MCQ
Fill in the Blanks
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Solution
The blood leaving the tissues becomes richer in carbon dioxide.
Explanation:
As blood passes through the tissues, it delivers oxygen to the cells and collects carbon dioxide produced during respiration. Hence, the blood leaving the tissues becomes richer in carbon dioxide.
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