The most popularly known blood grouping is the ABO grouping. It is named ABO and not ABC, because 'O' in it refers to having:
| 1. | other antigens besides A and B on RBCs |
| 2. | over dominance of this type on the genes for A and B types |
| 3. | one antibody only- either anti A or anti-B on the RBCs |
| 4. | no antigens A and B on RBCs |
Globulins contained in human blood plasma are primarily involved in:
| 1. | defence mechanisms of body |
| 2. | osmotic balance of body fluids |
| 3. | oxygen transport in the blood |
| 4. | clotting of blood |
| 1. | Neutrophils | 2. | Basophils |
| 3. | Eosinophils | 4. | Monocytes |
| 1. | neutrophils and eosinophils |
| 2. | lymphocytes and macrophages |
| 3. | eosinophils and lymphocytes |
| 4. | neutrophils and monocytes |
Which one of the following mammalian cells is not capable of metabolizing glucose to carbon dioxide aerobically?
| 1. | White blood cells | 2. | Unsatiated muscle cells |
| 3. | Liver cells | 4. | Red blood cells |
In humans, blood passes from the post caval to the diastolic right atrium of heart due to:
1. pushing open of the venous valves
2. suction pull
3. stimulation of the sino auricular node
4. pressure difference between the caval and atrium
If you suspect a major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence?
| 1. | Serum albumins |
| 2. | Serum globulins |
| 3. | Fibrinogen in the plasma |
| 4. | Haemocytes |
A drop of each of the following is placed separately on four slides. Which of them will not coagulate?
| 1. | blood plasma |
| 2. | blood serum |
| 3. | Sample from the thoracic duct of the lymphatic system |
| 4. | Whole blood from the pulmonary vein |
Rh-factor can produce disease:
| 1. | AIDS |
| 2. | Turner's syndrome |
| 3. | Erythroblastosis foetalis |
| 4. | Sickle cell anaemia |
If due to some injury the chordae tendineae of the tricuspid valve of the human heart is partially non-functional, what will be the immediate effect?
| 1. | The flow of blood into the aorta will be slowed down |
| 2. | The 'pace maker' will stop working |
| 3. | The blood will tend to flow back into the left atrium |
| 4. | The flow of blood into the pulmonary artery will be reduced |