During the respiration of an organism A, 1 molecule of glucose produces 2 ATP molecules whereas in the respiration of another organism B, 1 molecule of glucose produces 38 ATP molecules.
(a) Which organism is undergoing aerobic respiration?
(b) Which organism is undergoing anaerobic respiration?
(c) Which type of organism, A or B, can convert glucose into alcohol?
(d) Name one organism which behaves like A.
(e) Name two organisms which behave like B.

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Solution

(a) Organism B is undergoing aerobic respiration.

(b) Organism A is undergoing anaerobic respiration.

(c) In anaerobic respiration, glucose breaks down to form alcohol and carbon dioxide with the release of small amount of energy. Hence, organism A can convert glucose into alcohol.

(d) Yeast behaves like organism A.

(e) Humans and dogs behave like organism B.

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During the respiration of an organism A, 1 molecule of glucose produces 2 ATP molecules whereas, in the respiration of another organism B, 1 molecule of glucose produces 38 ATP molecules.
(a) Which organism is undergoing aerobic respiration?
(b) Which organism is undergoing anaerobic respiration?
(c) Which type of organism, A or B, can convert glucose into alcohol?
(d) Name one organism which behaves like A.
(e) Name two organisms which behave like B.

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(i) Glucose

\overset{Respiration}{\to}

Ethanol + Carbon dioxide + Energy
(ii) Glucose

\overset{Respiration}{\to}

Carbon dioxide + Water + Energy
(iii) Glucose

\overset{Respiration}{\to}

Lactic acid + Energy
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(b) Name one organism which respires according to equation (ii) above.
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Consider the following chemical reactions which take place in different organisms/tissues under various conditions
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(b) Name one organism which respires according to equation (ii) above.

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(e) Which equation/equations represent anaerobic respiration?
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