| 1 |
The average life span of RBCs is. |
- A. 110 days
- B. 115 days
- C. 118 days
- D. 120 days
|
| 2 |
The part of the heart which receives blood from lungs. |
- A. Left atrium
- B. Right atrium
- C. Left ventricle
- D. Right ventricle
|
| 3 |
Which gas reacts with food to convert it into carbon dioxide and water. |
- A. Oxygen
- B. Nitrogen
- C. Phosphorus
- D. Argon
|
| 4 |
Which blood cells protect our body from pathogens. |
- A. Platelets
- B. RCBs
- C. WBCs
- D. None of these
|
| 5 |
The pulse tells us the rate of.......... |
- A. Breathing
- B. Heart beat
- C. Both a and b
- D. None of these
|
| 6 |
Which artery supply blood to the heart |
- A. Pulmonary artery
- B. Hepatic artery
- C. Coronary Artery
- D. Aorta
|
| 7 |
The humna circulatory system is consist of |
- A. Heart
- B. Blood
- C. Blood vessels
- D. All of these
|
| 8 |
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
|
| 9 |
Which blood vessesl have valves in it. |
- A. Capillaries
- B. Artery
- C. Vein
- D. Arteriole
|
| 10 |
Right atrium receives. |
- A. Oxgynated blood
- B. Deoxygenated blood
- C. BOth types of blood
- D. no blood
|
