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(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.
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