Question 24 - MCQs from NCERT Exemplar - Chapter 6 Class 10 - Life Processes

Last updated at August 12, 2026 by

The blood leaving the tissues becomes richer in

(A) carbon dioxide

(B) water

(C) hemoglobin

(D) oxygen

 

Answer

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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