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NEET · Biology · STD 11 - 14. Breathing and exchange in gases

Match the following columns and select the correct option
Column \(I\) Column \(II\)
(\(a\)) Pneumotaxic Centre (\(i\)) Alveoli
(\(b\)) \(O _{2}\) Dissociation curve (\(ii\)) Pons region of brain
(\(c\)) Carbonic Anhydrase (\(iii\) Haemoglobin
(\(d\)) Primary site of exchange of gases (\(iv\)) \(R.B.C.\)

  1. A \((a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)\)
  2. B \((a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)\)
  3. C \((a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)\)
  4. D \((a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)\)
Verified Solution

Answer & Solution

Correct Answer

(C) \((a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)\)

Step-by-step Solution

Detailed explanation

The correct answer is option (3) because pneumotaxic centre is present in the pons region of the brain. In \(O _{2}\) dissociation curve, percentage saturation of haemoglobin is plotted against the \(pO _{2}\). Carbonic anhydrase is mainly present in the RBCs and its minute quantity is present in the plasma.