| 1 |
The average life span of RBCs is. |
- A. 110 days
- B. 115 days
- C. 118 days
- D. 120 days
|
| 2 |
The concentration of water in plasma is. |
- A. 55%
- B. 45%
- C. 92%
- D. 95%
|
| 3 |
Products of anaerobc respiration in yeasts are .......... along with energy. |
- A. Carbon dioxide and water
- B. Ethanol and carbon dioxide
- C. Oxygen and water
- D. Lactic acid and water
|
| 4 |
The humna circulatory system is consist of |
- A. Heart
- B. Blood
- C. Blood vessels
- D. All of these
|
| 5 |
Which blood cells protect our body from pathogens. |
- A. Platelets
- B. RCBs
- C. WBCs
- D. None of these
|
| 6 |
Blood vessels that carry blood away from the heart are |
- A. Capillaries
- B. Veins
- C. Arteries
- D. Vanules
|
| 7 |
Which of the following plays an important role in blood clotting. |
- A. Red blood cells
- B. White blood cell
- C. Platelets
- D. Bone cells
|
| 8 |
One gram of glucose produce abut.............. calories of energy . |
- A. 3600
- B. 3700
- C. 3800
- D. 3900
|
| 9 |
Which blood vessesl have valves in it. |
- A. Capillaries
- B. Artery
- C. Vein
- D. Arteriole
|
| 10 |
The thin transparent membrane around heart is called. |
- A. Pericardium
- B. Atria
- C. Veins
- D. Ventricle
|