Respiration in organisms Worksheet-8

Respiration in organisms Worksheet-8

Multiple-Choice Questions:

11. Which of the following holds true for the given picture?

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(a) A=gills; B= filaments                  (b) A= filaments; B= gills

(c) A= fins; B= gills                           (d) A= filaments; B= capillaries

12. Which of the following option is correctly matched with the diagram labeled as A, B, C, and D?

(a) A: Ribs, B: Trachea, C: Lungs, D: Diaphragm

(b) A: Lungs, B: Diaphragm, C: Ribs, D: Trachea

(c) A: Diaphragm, B: Ribs, C: Lungs, D: Trachea

(d) A: Lungs, B: Trachea, C: Ribs, D: Diaphragm

13. See the picture given below. Which of the following option is correct for the given picture for the process of breathing?

(a) Inhalation                                   (b) Exhalation

Fill in the Blanks:

1. The oxygen absorbed in the alveoli while breathing combines with haemoglobin forming _______.
2. Plants respire through tiny holes or openings called ______ which is present on the underside of the leaves.
3. The process of respiration that takes place in the presence of oxygen is called _______ respiration.

True/False:

1. Frogs breathe through their skins as well as their lungs.
2. The fishes have lungs for respiration.
3. During heavy exercise the breathing rate of a person slows down.
4. Respiration is the process of absorbing energy from the breakdown of food.
5. Respiration takes place outside the cells.
6. Respiration is a series of chemical reactions that result in the release of energy by the oxidation of food molecules.
7. In amphibians such as frogs, newts, and salamanders, the exchange of gases takes place through the skin when on land, in addition to the lungs when in water.

Answer key:

Multiple-Choice Questions:

11. (B)
12. (D)
13. (B)

Fill in the Blanks:

1. Oxyhaemoglobin
2. Stomata
3. Aerobic

True/False:

1. T
2. F
3. T
4. F
5. F
6. T
7. F