(a)Respiration is a vital function of the body. Justify this statement.
(b) What is the main difference between aerobic respiration and anaerobic respiration ? Give one example of each.
(c) What type of respiration takes place (i) in yeast, and (ii) in humans ?

(a) Respiration is a vital function of the body as it gives energy for carrying out all the life processes which are needed to keep the organism alive.

Aerobic respiration Anaerobic respiration
(i) It takes place in the presence of oxygen. (i) It takes place in the absence of oxygen.
(ii) It produces a considerable amount of energy. (ii) Lesser energy is produced during this process.
(iii) The end products are carbon dioxide and water. (iii) The end products are ethanol and carbon dioxide (in yeast) and lactic acid (in animal muscles).
(iv) Complete breakdown of food occurs during aerobic respiration (iv) Partial breakdown of food occurs during anaerobic respiration.
Example: Human Beings. Example: Yeast.

(c)  (i) Anaerobic respiration takes place in Yeast.
 (ii) Aerobic respiration takes place in Humans.


Simply Easy Learning

Updated on: 10-Oct-2022


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