Question

1. The end products of respiration are :
(a) Only carbon dioxide
(b) Carbon dioxide and water
(c) Carbon dioxide, water and energy
(d) Energy and carbon dioxide
2. The process in which only exchange of gases takes place is called :
(a) Respiration
(b) Breathing
(c) Combustion
(d) Internal respiration
3. In earthworm, exchange of gases takes place through:
(a) Water
(b) Gills
(c) Moist skin
(d) Spiracles
4. Alveoli are structures present in :
(a) Lungs
(b) Bronchi
(c) Gills
(d) All of these
5. Normal range of breathing rate per minute in an adult person at rest is :
(a) 9-12
(b) 15-18
(c) 12-15
(d) 18-24
6. During inhalation, the ribs :
(a) move outwards
(b) move upwards
(c) move downwards
(d) do not move at all
7. Alcohol is formed during :
(a) aerobic respiration
(b) heavy exercise
(c) anaerobic respiration
(d) both (b) and (c)
8. In the process of respiration :
(a) Oxygen is required and carbon dioxide is formed as a waste
(b) Carbon dioxide is required and oxygen is formed as a waste
(c) Both (a) and (b)
(d) None of these
9. Respiration is a process opposite to :
(a) Blood circulation
(b) Digestion
(c) Photosynthesis
(d) None of these​

Answer 1

Answer:

1.a

2.a

3.c

4.b

5.d

6.a

7.d

8.a

9.d