Question

EXERCISES
A. Choose the most appropriate answer.
1. In insects, exchange of gases takes place through
a. spiracles. b. gills.
c. lungs,
2. Through which tubes does air enter the lungs from the windpipe?
d. trachea
a. bronchi
b. bronchioles
3. Where in the respiratory system does oxygen from the air breathed in pass into the blood?
a. trachea
b. bronchi
c. bronchioles
d. alveoli
4. Which of these is not true about cellular respiration?
a. It releases energy.
b. It occurs only during the day.
c. It utilizes oxygen and liberates carbon dioxide.
d. It occurs in all living things
5. Which of these is true about anaerobic respiration?
a. Oxygen is utilized.
b. Carbon dioxide is given out.
c. Amount of energy released is more than in aerobic respiration
d. Sometimes it occurs in the human body also.
6. Exchange of gases in plants takes place through the
a. stomata.
b. roots.
c. buds.
d. entire leaf surface
7. During which process is energy released?
a. external respiration
b. internal respiration
c. inhalation
d. exhalation
8. Which of these is not true?
a. Combustion is a faster process than respiration.
b. Combustion occurs at a higher temperature than respiration
c. In combustion, energy is released in several steps, whereas in respiration it is released
in a single step
d. Combustion can occur anywhere but respiration only occurs in living cell ​

Answer 1

Answer:1 - a

2-a

3-d

4-d

5-a

6-a

7-b

8- c not sure

Answer 2

Answer:

1.spiracles

1.bronchi

3.bronchi

4.it occurs during the day

5.c

6.stomata

7.exahalation

8.a