Plants like other animals also respire. Plants also need energy. The plants get energy through the process of respiration in which glucose food breaks down in the presence of oxygen to form carbon dioxide and water with the release of energy.
This energy is used by the plant for carrying out its various life processes. Thus, Like other organisms, plants also respire for their survival. The respiration in plants differs from that of animals. In other words, in plants, each part can independently take in oxygen from air, utilize it to obtain energy, and give out carbon dioxide.
Respiration In Leaves
The leaves of plants have tiny pores on their surface which are called stomata. The exchange of gases in the leaves during respiration takes place through stomata.
This happens as follows: Oxygen from the air enters into a leaf through stomata and reaches all the cells by the process of diffusion. This oxygen is used in respiration in cells of the leaf. The carbon dioxide produced during diffuses out from the leaf into the air through same stomata.The photosynthesis reaction makes glucose and the respiration reaction break it down. In photosynthesis, the energy which goes into the reaction is light energy. In respiration, the energy which comes out is chemical energy.
Respiration in Roots
The roots of plants are under the ground but root cells also need oxygen to carry out respiration and release energy for their own use.
How Does Respiration Occur in Roots?
The roots of a plant take up air from the spaces between the soil particles. Root hairs are in contact with the air in the soil particles. Oxygen from the air in soil particles diffuse into root hair and reach all the cells of the root where it is utilised in respiration. Carbon dioxide produced in the cells of the root during respiration goes out through the same root hair by the process of diffusion.
Explanation:
Respiration in plants happens throughout the day and night thereby carbon dioxide is produced. However, during the daytime, the amount of carbon dioxide released is negligible compared to the amount of oxygen produced as a result of photosynthesis. Hence, one should not sleep under a tree at night.
Answers & Comments
Answer:
Respiration in Plants
Plants like other animals also respire. Plants also need energy. The plants get energy through the process of respiration in which glucose food breaks down in the presence of oxygen to form carbon dioxide and water with the release of energy.
This energy is used by the plant for carrying out its various life processes. Thus, Like other organisms, plants also respire for their survival. The respiration in plants differs from that of animals. In other words, in plants, each part can independently take in oxygen from air, utilize it to obtain energy, and give out carbon dioxide.
Respiration In Leaves
The leaves of plants have tiny pores on their surface which are called stomata. The exchange of gases in the leaves during respiration takes place through stomata.
This happens as follows: Oxygen from the air enters into a leaf through stomata and reaches all the cells by the process of diffusion. This oxygen is used in respiration in cells of the leaf. The carbon dioxide produced during diffuses out from the leaf into the air through same stomata.The photosynthesis reaction makes glucose and the respiration reaction break it down. In photosynthesis, the energy which goes into the reaction is light energy. In respiration, the energy which comes out is chemical energy.
Respiration in Roots
The roots of plants are under the ground but root cells also need oxygen to carry out respiration and release energy for their own use.
How Does Respiration Occur in Roots?
The roots of a plant take up air from the spaces between the soil particles. Root hairs are in contact with the air in the soil particles. Oxygen from the air in soil particles diffuse into root hair and reach all the cells of the root where it is utilised in respiration. Carbon dioxide produced in the cells of the root during respiration goes out through the same root hair by the process of diffusion.
Explanation:
Respiration in plants happens throughout the day and night thereby carbon dioxide is produced. However, during the daytime, the amount of carbon dioxide released is negligible compared to the amount of oxygen produced as a result of photosynthesis. Hence, one should not sleep under a tree at night.