Zoology: Respiratory System 1

1. In anaerobic respiration of muscles, pyruvic acid is changed to
(a) Alcohol
(b) Acetaldehyde
(c) Acetyl CoA
(d) Lactic acid

2. In which of the following animals, respiration occurs without any respiratory organ
(a) Fish
(b) Frog
(c) Cockroach
(d) Earthworm

3. The mode of respiration of rabbit is:
(a) Cutaneous
(b) Mucosal
(c) Tracheal
(d) Pulmonary 

4. Larynx is found in
(a) Both frog and rabbit
(b) Neither frog nor rabbit
(c) Frog but not in rabbit
(d) Rabbit but not in frog

5. Respiration rate is the lowest during
(a) Running
(b) Playing
(c) Eating
(d) Sleeping

Answers:
1. d
2. d
3. d
4. a
5. d