| 1. | connects the two atria in the foetal heart. |
| 2. | is a condition in which the heart valves do not completely close |
| 3. | is a shallow depression in the inter ventricular septum |
| 4. | is a connection between the pulmonary trunk and the aorta in the foetus |
| 1. | It mediates the exchange of cellular \(HCO_{3^-}\) with \(Cl^-\) in plasma |
| 2. | It is a cytoplasmic protein |
| 3. | It mediates the exchange of cations between cell and plasma |
| 4. | Both (1) and (2) |
| I: | Fibrinogens are needed for clotting or coagulation of blood. |
| II: | Globulins, primarily, are involved in the defense mechanisms of the body. |
| III: | The albumins help in osmotic balance. |
| 1. | Only I | 2. | Only I and III |
| 3. | Only II and III | 4. | I, II and III |
| 1. | Albunims | 2. | Globulins |
| 3. | Fibrinogen | 4. | Angiotensinogen |