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NEETZoologyBreathing and Exchange of Gases

Match List I with List II regarding the steps of respiration. (A) Pulmonary ventilation (I) Use of O ₂ for catabolic reactions and release of CO ₂ (B) Alveolar diffusion (II) Atmospheric air is drawn in and CO ₂ rich air is released out (C) Transport of gases (III) Movement of O ₂ and CO ₂ mediated by blood (D) Cellular utilisation (IV) Exchange of O ₂ and CO ₂ across the respiratory membrane Choose the correct answe

Options

  1. A(A)-(IV), (B)-(II), (C)-(III), (D)-(I)
  2. B(A)-(II), (B)-(IV), (C)-(I), (D)-(III)
  3. C(A)-(II), (B)-(IV), (C)-(III), (D)-(I)
  4. D(A)-(IV), (B)-(III), (C)-(II), (D)-(I)

Correct answer

C. (A)-(II), (B)-(IV), (C)-(III), (D)-(I)

Step-by-step solution

According to NCERT, the steps of respiration are: 1. Breathing or pulmonary ventilation by which atmospheric air is drawn in and CO ₂ rich alveolar air is released out (A matches with II). 2. Diffusion of gases ( O ₂ and CO ₂ ) across alveolar membrane (B matches with IV). 3. Transport of gases by the blood (C matches with III). 4. Diffusion of O ₂ and CO ₂ between blood and tissues. 5. Utilisation of O ₂ by the cells for catabolic reactions and resultant release of CO ₂ (D matches with I). Therefore, the correct m

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