| 1 |
The concentration of water in plasma is. |
- A. 55%
- B. 45%
- C. 92%
- D. 95%
|
| 2 |
Trachea divides into two |
- A. Bronchi
- B. Veins
- C. Villi
- D. Ribs
|
| 3 |
Which blood cells protect our body from pathogens. |
- A. Platelets
- B. RCBs
- C. WBCs
- D. None of these
|
| 4 |
Aerobic respiation takes place in. |
- A. Mitochondria
- B. Chloroplast
- C. Nucleus
- D. Blood vessels
|
| 5 |
The humna circulatory system is consist of |
- A. Heart
- B. Blood
- C. Blood vessels
- D. All of these
|
| 6 |
Exchange of material in the body tissues and blood takkes place in. |
- A. Aorta
- B. Ventricles
- C. Capillaries
- D. Veins
|
| 7 |
Exchange of gases takes place in. |
- A. Lungs
- B. Bronchioles
- C. Aleoli
- D. Blood
|
| 8 |
A substance that speed up the chemical reactions is called. |
- A. Solute
- B. Solvent
- C. Solution
- D. Catalyst
|
| 9 |
The ... prevents food from entering the trachea. |
- A. Glottis
- B. Epiglottis
- C. Bronchi
- D. Alveoli
|
| 10 |
The opening of air passage in the laryanx is called. |
- A. Trachea
- B. Bronchi
- C. Glottis
- D. Alveoli
|