Question
Differentiate between: A-band and I-band.
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S. No.
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A-Band
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I-Band
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1.
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It is formed of myosin filaments.
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It is formed of only actin filaments.
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|
2.
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It gives dark appearance.
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It gives light appearance.
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3.
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It has a light H-zone, in the centre.
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It has dark Krause's membrane, in the centre.
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|
4.
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It is anisotropic band which possesses two type of proteins.
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It is isotropic band which possesses only one type of proteins.
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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 |