Question

Match the following.

Column A	Column B
1. Nitrogen fixation	a. Uses carbon dioxide to produce food and oxygen
2. Respiration	b. Removal of water from plants
3. Transpiration	c. Burning uses oxygen and produces carbon dioxide
4. Photosynthesis	d. Converts nitrogen to usable nitrates
5. Combustion	e. Uses oxygen and glucose to produce energy and carbon dioxide

Accepted Answer

Nitrogen fixation — d. Converts nitrogen to usable nitrates

The nitrogen fixation converts nitrogen to usable nitrates. This process is usually carried out by bacteria like rhizobium present in the soil.

Respiration — e. Uses oxygen and glucose to produce energy and carbon dioxide

The respiration uses oxygen and glucose to produce energy and carbon dioxide. The oxygen necessary for respiration is given off by the plants and the carbon dioxide we exhale is utilized by the plants for the process of photosynthesis.

Transpiration — b. Removal of water from plants.

The transpiration is the removal of water from the plants through the stomata.

Photosynthesis — a. Uses carbon dioxide to produce food and oxygen

Photosynthesis uses carbon dioxide to produce food and oxygen. The food produced by the plants is called glucose. The oxygen given out is used for the process of respiration by the living beings.

Combustion — Burning, uses oxygen and produces carbon dioxide.

The combustion uses oxygen and produces carbon dioxide. If the combustion take place in the presence of insufficient supply of oxygen, carbon monoxide is produced.

Column A Column B

1. Nitrogen fixation d. Converts nitrogen to usable nitrates

2. Respiration e. Uses oxygen and glucose to produce energy and carbon dioxide

3. Transpiration b. Removal of water from plants

4. Photosynthesis a. Uses carbon dioxide to produce food and oxygen

5. Combustion c. Burning, uses oxygen and produces carbon dioxide

Dr. J M D'Souza and Dr. Kirti J D'Souza Solutions for Exercise 8: EXERCISES

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