Respiration in Other Organisms

Q.

What is the Respiratory Surface?

Q.

While visiting an aquarium, Aman noticed that fishes open and close their mouths and gill slits frequently. This action forces the surrounding water to enter their body.

Which of the following statements justifies the observation made by Aman?

1. The amount of dissolved oxygen in water is low

2. The amount of dissolved oxygen in water is high

3. The amount of dissolved CO₂ in water is high

4. The amount of dissolved CO₂ in water is low

Q.

The network of air tubes in insects for gas exchange is called __________

1. tracheae

2. spiracles

3. tubes

4. windpipe

Q.

How does a fish in an aquarium absorb oxygen?

Q.

What is the inhalation process?

Q. Match the terms given in column 'A' with those in column 'B'.
Match the items of column A with alternatives given in column B.

	Column A		Column B
(a)	tracheoles	(i)	yeast
(b)	diaphragm	(ii)	inspiration
(c)	gill filaments	(iii)	fish
(d)	carbonic anhydrase	(iv)	insect
(e)	lactic acid	(v)	fast muscle
(f)	fermentation	(vi)	hydrogencarbonate
(g)	cutaneous respiration	(vii)	earthworm

Q. Which chamber of human heart pumps the oxygenated blood into aorta?

1. Right atrium
2. Left atrium
3. Left ventricle
4. Right ventricle

Q. Which of the following are the respiratory organs of Phylum Mollusca?

1. notochord
2. Cindoblasts
3. ctenidia
4. Clitellum

Q. Since fishes cannot absorb gaseous oxygen they die soon after they are taken out of the water.

1. False
2. True

Q. Which of the following are the respiratory organs of Phylum Mollusca?

1. ctenidia
2. Clitellum
3. Cindoblasts
4. notochord

Q. How are aerobic and anaerobic respirations different in plants?

Q.

Sponges have pores all over the body. Why?

Q.

What is respiratory tract?