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BECE Science 2010 Paper

Question : 10

Total: 40

Solution:

Concept:

Internal respiration involves the oxidation of glucose, producing carbon dioxide and water as waste products.

Explanation:

The oxidation of glucose in the body is represented by:

\mathrm{C}_6\mathrm{H}_{12}\mathrm{O}_6 + 6\mathrm{O}_2 \rightarrow 6\mathrm{CO}_2 + 6\mathrm{H}_2\mathrm{O} + \text{energy}

The gas produced is carbon dioxide, which is also called carbon (IV) oxide.

Answer:

B. Carbon (IV) oxide.

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