| 1. | haemoglobin | 2. | Na+ |
| 3. | K+ | 4. | albumin |
| 1. | Thiamine | 2. | Vitamin K |
| 3. | Ascorbic acid | 4. | Cyanocobalamin |
| 1. | neutrophils | 2. | eosinophils |
| 3. | basophils | 4. | lymphocytes |
| I: | has the same mineral distribution as that in plasma. |
| II: | has more protein than that in plasma. |
| a. | the blood type is decided by the presence or absence of two surface antibodies on the RBCs namely anti-A and anti-B. |
| b. | the plasma of different individuals contain two natural antigens. |
| c. | a person with blood group A can receive blood either from a person with blood group O or from a person with blood group AB. |
| d. | a person with blood group A can donate blood either to a person with blood group O or to a person with blood group A. |
| Statement I: | RBCs are devoid of nucleus in humans and are biconcave in shape and in all other mammals have nucleus and are spherical in shape. |
| Statement II: | RBCs have an average life span of 120 days after which they are destroyed in the spleen (graveyard of RBCs). |
| 1. | Left ventricle | 2. | Left atrium |
| 3. | Right atrium | 4. | Right ventricle |