1 |
Emphysema is a disease caused by the breakdown of. |
- A. Lungs
- B. Bronchi
- C. Alveoli
- D. Trachea
|
2 |
Spiracles are found in |
- A. Fish
- B. Cockroach
- C. Leech
- D. Earth worm
|
3 |
The main site of exchange of gases iin plants are |
- A. Cuticle
- B. Lenticel
- C. Stomata
- D. Epidermis
|
4 |
Parabronchi are present in |
- A. Man
- B. Cat
- C. Birds
- D. Frog
|
5 |
The respiratory system is most efficient in ______ |
- A. Man
- B. Bird
- C. Fish
- D. Snake
|
6 |
The most abundant protein in chloroplast and probably most abundant protein in the world is |
- A. Hemoglobin
- B. Rubisco
- C. Insulin
- D. Globulin
|
7 |
The volume of air taken inside the lungs and expelled during exercise is about |
- A. 2.5 liters
- B. 3.5 liters
- C. 4.5 liters
- D. 1.5 liters
|
8 |
When blood leaves the capillary bed most of the carbon dioxide is in the form of |
- A. Carbonate ions
- B. Bicarbonate ions
- C. Hydrogen ions
- D. Hydroxyl ions
|
9 |
Air spaces between mesophyll cells of a leaf comprise ______ of the total volume |
- A. 20%
- B. 30%
- C. 40%
- D. 50%
|
10 |
During breathing no stale of air remains in the lungs of. |
- A. Mammals
- B. Amphibian
- C. Birds
- D. Sarracenia
|