| 1. | reduce the blood supply to the brain |
| 2. | decrease the affinity of hemoglobin with oxygen |
| 3. | lead to release of bicarbonate ions by the liver |
| 4. | reduce the rate of heartbeat |
| Column-I | Column-II | ||
| (a) | Tidal volume | (i) | 2500-3000 mL |
| (b) | Inspiratory Reserve | (ii) | 1100-1200 mL |
| (c) | Expiratory Reserve | (iii) | 500-550 mL |
| (d) | Residual volume | (iv) | 1000-1100 mL |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iii) | (ii) | (i) | (iv) |
| 2. | (iii) | (i) | (iv) | (ii) |
| 3. | (i) | (iv) | (ii) | (iii) |
| 4. | (iv) | (iii) | (ii) | (i) |
Select the favorable conditions required for the formation of oxyhemoglobin at the alveoli.
1. High pO2, high pCO2, less H+, higher temperature
2. Low pO2, low pCO2, more H+, higher temperature
3. High pO2, low pCO2, less H+, lower temperature
4. Low pO2 high pCO2 more H+, higher temperature
Adult human RBCs are enucleated. Which of the following statement(s) is/ are the most appropriate explanation for this feature?
| (a) | They do not need to reproduce |
| (b) | They are somatic cells |
| (c) | They do not metabolize |
| (d) | All their internal space is available for oxygen transport |
1. Only (a)
2. (a),(c) and (d)
3. (b) and (c)
4. Only (d)
Match the items given in Column-I with those in Column-II and select the correct option given below:
| Column-I | Column-II | ||
| a. | Fibrinogen | i. | Osmotic balance |
| b. | Globulin | ii. | Blood clotting |
| c. | Albumin | iii. | Defense mechanism |
| a | b | c | |
| 1. | iii | ii | i |
| 2. | i | ii | iii |
| 3. | i | iii | ii |
| 4. | ii | iii | i |
A specialised nodal tissue embedded in the lower corner of the right atrium, close to atrio-ventricular septum, delays the spreading of impulses to heart apex for about 0.1 sec.
This delay allows -
1. blood to enter aorta.
2. the ventricles to empty completely.
3. blood to enter pulmonary arteries.
4. the atria to empty completely.
Persons with 'AB' blood group are called as "Universal recipients". This is due to:
| 1. | Presence of antibodies, anti-A and anti-B, on RBCs. |
| 2. | Absence of antibodies, anti-A and anti-B, in plasma. |
| 3. | Absence of antigens A and B on the surface of RBCs. |
| 4. | Absence of antigens A and B in plasma. |
| 1. | Dorsal Aorta | 2. | Hepatic Vein |
| 3. | Hepatic Portal Vein | 4. | Renal Vein |
A decrease in blood pressure/volume will not cause the release of?
| 1. | Atrial natriuretic factor | 2. | Aldosterone |
| 3. | ADH | 4. | Renin |
Use of an artificial kidney during hemodialysis may result in:
| (a) | Nitrogenous waste build-up in the body |
| (b) | Non-elimination of excess potassium ions |
| (c) | Reduced absorption of calcium ions from gastro-intestinal tract |
| (d) | Reduced RBC production |
Which of the following options is the most appropriate?
1. (a) and (d) are correct
2. (a) and (b) are correct
3. (b) and (c) are correct
4. (c) and (d) are correct
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