| List-I | List-II | ||
| A. | P-wave | I. | Ventricular repolarization-relaxation phase |
| B. | P-R interval | II. | The onset of ventricular depolarization - leads to ventricular contraction |
| C. | QRS complex | III. | Time for the impulse to be conducted from SA node to the ventricles through the AV node |
| D. | T-wave | IV. | Atrial depolarization - leads to atrial contraction |
| List I | List II |
| A. Bicuspid (mitral) valve | I. Between right atrium and right ventricle |
| B. Aortic semilunar valve | II. Between left atrium and left ventricle |
| C. Tricuspid valve | III. Between right ventricle and pulmonary artery |
| D. Pulmonary semilunar valve | IV. Between left ventricle and aorta |
| 1. | A | 2. | B |
| 3. | C | 4. | None |
| Statement I: | A carries oxygenated blood and B carries deoxygenated blood. |
| Statement II: | D and C close simultaneously during the beginning of ventricular diastole. |
| Statement III: | E and F close simultaneously during the beginning of ventricular systole. |
| 1. | atherosclerosis in the blood vessel that causes coronary artery disease |
| 2. | narrowing of lumen of coronary artery that causes congestive heart failure |
| 3. | vasoconstriction of the lumen of coronary artery that causes angina pectoris |
| 4. | the collection of platelets in blood vessel caused by viral infections like dengue that can damage the heart muscle |
| List - I (Biological Molecules) | List - II (Biological functions) | ||
| (a) | Glycogen | (i) | Hormone |
| (b) | Globulin | (ii) | Biocatalyst |
| (c) | Steroids | (iii) | Antibody |
| (d) | Thrombin | (iv) | Storage product |
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (iii) | (i) | (ii) |
| 2. | (iii) | (ii) | (iv) | (i) |
| 3. | (iv) | (ii) | (i) | (iii) |
| 4. | (ii) | (iv) | (iii) | (i) |
| A. | RBCs are devoid of nucleus in most of the mammals and are biconvex in shape. |
| B. | Lymph has the same mineral distribution as that in plasma. |
| C. | By counting the number of QRS complexes in ECG that occur in a given time period, one can determine the heartbeat rate of an individual. |
| D. | Heart is an endodermally derived organ. |