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BIOLOGY

JAMB 2006 - Question 12

Biology 2006 JAMB Past Questions - Question 12: The formation of water in the tissue respiration results from the

Choose the most appropriate option for the gap .

The formation of water in the tissue respiration results from the

A: breakdown of water molecules

B: reduction of oxygen by hydrogen

C: reduction of carbon(IV) oxide

D: combination of water molecules

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Correct Answer

Explanation

B - A reactionin which hydrogen is added to a substance to reduction reaction. Also, the oxidation state of oxygen is reduced fromzero in a gaseous state to minus two in oxide ion as oxygen atom accepts two electrons from hydrogen molecule. Hydrogen is oxidized to hydrogenion by loss of electron.