Question

C3. Match the two columns.
Column A
1. Skin
2. Frog
3. Yeast
4. Diaphragm
5. Old stems
6. Windpipe
7. Leaves
8. Openings of tracheae
Column B
(i) Spiracles
(ii) Lenticels
(iii) Floor of chest cavity
(iv) Stomata
(v) Earthworm
(vi) Anaerobe
(vii) Trachea
(viii) Skin and lungs ​

Answer 1

✬ ANSWER ✬

1.) Skin :- Earthworm

2.) Frog :- Skin and Lungs

3.) Yeast :- Anaerobe

4.) Diaphragm :- Floor of chest cavity

5.) Old stems :- Lenticels

6.) Wind pipe :- Trachea

7.) Leaves :- Stomata

8.) Opening of trachea :- Spiracles

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• Frogs can breathe through their lungs and skin

• The type of respiration which takes place without oxygen is called anaerobic respiration.

• Diaphragm helps us in respiration. On inhalation it contracts and flattens.

• Lenticels are opening on stem , fruit that control gas exchange.

• The tiny openings on the surface of a leaf that helps in gas exchange.

Answer 2

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1) Skin -----------› (v) Earthworm

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2) Frog ----------› (viii) Skin and Lungs

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3) Yeast ---------› (vi) Anaerobe

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4) Diaphragm --------› (iii) Floor of chest cavity

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5) Old-stems ---------› (ii) Lenticles

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6) Wind-pipe ---------› (vii) Trachea

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7) Leaves --------------› (iv) Stomata

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8) Opening of Trachea ---------› (i) Spiracles

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1) Earthworm breathe through their skin. Air dissolves on the mucus of their skin, so they must stay moist to breathe .

2) Frog respires through both Skin and Lungs . It's depend upon the weather or condition of environment .

3) Yeast respires in the process of Anaerobic respiration . In this process, glucose breaks down into pyruvates in the absence of oxygen. Glucose breaks down into ethanol , carbon dioxide and gives two molecules of A.T.P .

4) Diaphragm is present on the floor of chest cavity .

5) Lenticles are present on older stems. These are openings that help in the exchange of gases in older, Woody stems as well as help in Lenticular transpiration .

6) Wind-pipe opens in Trachea .

7) Stomata is the cooking-house of Plant, present in the leaves .

8) Spiracles are respiratory openings found on the thorax and abdomen of insects .