Question

give scientific reason why sometimes higher plants and animals too perform anaerobic respiration

Answer 1

It is used when there is not enough oxygen for aerobic respiration. It can be summarised by the following equation: glucose → lactic acid (+ energy released). This type of respiration may be used when, for example, an animal is being chased by a predator. 

Answer 2

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

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.

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.

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.