Lymph nodes:
1. Filter the lymph
2. Contain phagocytic cells
3. Responsible for lymphocyte activation
4. All of these
| Assertion (A): | Lymph is called the 'middle man' of body. |
| Reason (R): | Exchange of nutrients, gases and other materials between blood and the cells always occur through this fluid. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
| A: | It is a colourless fluid containing specialised lymphocytes which are responsible for the immune responses of the body. |
| B: | It is an important carrier for nutrients, hormones, etc. |
| C: | Fats are absorbed through it in the lacteals present in the intestinal villi. |
| 1. | Only A is correct |
| 2. | Only B and C are correct |
| 3. | Only C is correct |
| 4. | A, B and C are correct |
| 1. | More fibrinogen and platelets |
| 2. | Less protein content and absence of RBCs |
| 3. | More proteins and absence of WBCs |
| 4. | Equal protein and higher calcium concentration |