Which of the following derives maximum energy per molecule of glucose?

Alcoholic fermentation

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Lactic acid fermentation

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Aerobic respiration in unicellular organisms

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Glycolysis in liver cells

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Solution

The correct option is D Aerobic respiration in unicellular organisms
Aerobic respiration is the process of producing cellular energy involving oxygen. Cells break down food in the mitochondria in a long, multistep process that produces roughly 36 ATP. The first step in is glycolysis, the second is the citric acid cycle and the third is the electron transport system.

So the correct option is 'Aerobic respiration in unicellular organisms'.

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Similar questions

Q. Consider the following chemical reactions which take place in different organisms/tissues under various conditions:
(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
(a) Name one organism which respires according to equation (i) above.
(b) Name one organism which respires according to equation (ii) above.
(c) When and where does respiration represented by equation (iii) above take place?
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(e) Which equation/equations represent anaerobic respiration?
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(ii) Glucose $R e s p i r a t i o n - ------ \to$ Carbon dioxide + Water + Energy
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(b) Name one organism which respires according to equation (ii) above.

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