Check sibling questions

The blood leaving the tissues becomes richer in

(A) carbon dioxide

(B) water

(C) hemoglobin

(D) oxygen



When the cells undergo respiration , they take in oxygen from the blood and release carbon dioxide.

  • This CO 2 is carried in the blood by the capillaries and veins back to the heart for re-oxygenation
  • Thus, the blood that leaves the tissues is rich in carbon dioxide .

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So, the correct answer is (a) carbon dioxide

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Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 13 years and a teacher from the past 17 years. He teaches Science, Economics, Accounting and English at Teachoo