Respiration among Plants
Respiration among Plants
Respiratory System in Plants: Plants respire through tiny holes or openings called stomata.
Stomata trap air and exchange of gases takes place inside plant cells.
Starch(sugar) + oxygen Energy + Carbon dioxide + water
Respiration requires air containing oxygen. But sometimes respiration takes place in the absence of oxygen. Thus, there are two types of respiration: Aerobic Respiration and Anaerobic Respiration,
Respiration in Plants:
In Leaves and Stem: Exchange of gases like oxygen and carbon dioxide in plants takes place through the tiny pores in the leaves known as stomata. Even the stems have openings known as lenticels that help in the exchange of gases. These pores on leaves and stems allow oxygen, carbon dioxide and water vapour to come in or go out of the plant body.
In roots:
The exchange of gases in roots of a plant takes place by the process of ‘diffusion’ from the air present in between the soil particles. Oxygen diffuses into the root hair and passes into the root cells from where the carbon dioxide moves out into the soil. If the root of a plant remains waterlogged for long, the plant dies.
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Each stomata pore is bordered by a pair of __________________ guard cells bearing chloroplasts in them. | |||
| Right Option : A | |||
| View Explanation | |||
Which of the following are correct ? (a) In plants exchange of gases like oxygen and carbon dioxide takes place through the tiny pores in the leaves known as stomata. (b) Even the stems have openings known as lenticels that help in the exchange of gases. (c) The pores on leaves and stems allow oxygen, carbon dioxide and water vapour to come in or go out of the plant body. | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following are correct ? (a) Plants respire through tiny holes or openings called stomata. (b) Stomata trap air and exchange of gases takes place inside plant cell . Starch(sugar) + oxygen | |||
| Right Option : C | |||
| View Explanation | |||
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