Question

why energy in case of higher plants and animals is obtained by tissue respiration

please answer correct reason..​

Answer 1

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. Thus, Like other organisms, plants also respire for their survival.

Answer 2

(i). Respiration is an energy yielding process and takes place by the oxidation of foodstuffs.

(ii) Higher plants and animals require oxygen in order to respire aerobically.

(iii) However, in conditions where oxygen is depleted, these organisms perform anaerobic respiration to obtain energy.

(iv). Glucose is incompletely oxidized and a comparatively lesser amount of energy is obtained through anaerobic respiration. The anaerobic respiration mainly takes place during strenuous exercise when there is shortage of oxygen, which leads to production of lactic acid in muscles.