Question
What are porins? What role do they play in diffusion?
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| S.No. | Column-I | Column-II |
| (A) | Carbonic anhydrase | (i) Occupational pulmonary disease |
| (B) | Anatomical dead space | (ii) Common pulmonary disease in cigarette smokers |
| (C) | Asbestosis | (iii) 21 ml/mt/mm Hg |
| (D) | Emphysema | (iv) located in the medulla oblongata |
| (E) | Oxygen diffusion capacity | (v) Found in RBCs |
| (F) | Pneumotaxic center | (vi) 150 ml |
| (G) | Respiratory center | (vii) No direct sensitivity to oxygen |