| 1. | Mature insulin molecule consists of three polypeptide chains - A, B and C. |
| 2. | Insulin is synthesized as prohormone which contains extra stretch of C-peptide. |
| 3. | C-peptide is not present in mature insulin molecule. |
| 4. | Polypeptide chains A and B are linked to disulphide bridges. |
| 1. | M | 2. | G2 |
| 3. | G1 | 4. | G0 |
| Statement I: | RNA being unstable, it mutates at a faster rate |
| Statement II: | RNA can directly code for synthesis of proteins hence can easily express the characters. |
| Assertion (A): | Ascending limb of the loop of Henle is impermeable to water and allows transport of electrolytes actively or passively. |
| Reason (R): | Dilution of filtrate takes place due to efflux of electrolytes in the medullary fluid |
| 1. | (A) is True, (R) is False |
| 2. | (A) is False, (R) is True |
| 3. | Both (A) and (R) are True and (R) is the correct explanation of (A) |
| 4. | Both (A) and (R) are True but (R) is not the correct explanation of (A) |
| A: | Thyrocalcitonin (TCT) regulates the blood calcium level |
| B: | In males, FSH and androgens regulate spermatogenesis |
| C: | Hyperthyroidism can lead to goitre |
| D: | Glucocorticoids are secreted in Adrenal Medulla |
| E: | Parathyroid hormone is regulated by circulated levels of sodium ions |
| 1. | (C) and (E) only | 2. | (A) and (B) only |
| 3. | (B) and (C) only | 4. | (A) and (D) only |
| (A) | Diffusion of gases (O2 and CO2) across alveolar membrane |
| (B) | Diffusion of O2 and CO2 between blood and tissues |
| (C) | Transport of gases by the blood |
| (D) | Pulmonary ventilation by which atmospheric air is drawn in and CO2 rich alveolar air is released out |
| (E) | Utilisation of O2 by the cells for catabolic reactions and resultant release of CO2 |
| 1. | (D), (A), (C), (B), (E) | 2. | (C), (B), (A), (E), (D) |
| 3. | (B), (C), (E), (D), (A) | 4. | (A), (C), (B), (E), (D) |
| List-I | List-II | ||
| (A) | Contractile vacuole | (I) | Asterias |
| (B) | Water vascular system | (II) | Amoeba |
| (C) | Canal system | (III) | Spongilla |
| (D) | Flame cells | (IV) | Taenia |
| Options: | (A) | (B) | (C) | (D) |
| 1. | (IV) | (II) | (I) | (III) |
| 2. | (I) | (III) | (II) | (IV) |
| 3. | (III) | (II) | (I) | (IV) |
| 4. | (II) | (I) | (III) | (IV) |
| List-I | List-II | ||
| (A) | Palm bones | (I) | Phalanges |
| (B) | Wrist bones | (II) | Metacarpals |
| (C) | Ankle bones | (III) | Carpals |
| (D) | Digit bones | (IV) | Tarsals |
| Options: | (A) | (B) | (C) | (D) |
| 1. | II | III | I | IV |
| 2. | IV | I | II | III |
| 3. | III | IV | I | II |
| 4. | II | III | IV | I |