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Set 9: Text Structure (Intermediate)

Explanation

Answer: C

PASSAGE

Enzymes are biological catalysts. They speed up reactions without being consumed. For example, amylase in saliva breaks down starch into sugar instantly.

Which choice best describes the function of the third sentence?

A. It explains how to make enzymes in a lab.
B. It lists the chemical formula for sugar.
C. It provides a concrete example of the function described earlier.✓ Correct
D. It contradicts the definition of an enzyme.

Detailed Answer Explanation

This question tests your understanding of how the text is organized. Function: Speed up. Example: Amylase breaks down starch. Authors structure their writing purposefully to guide readers through their ideas. Identify the organizational pattern (cause-effect, compare-contrast, problem-solution) and how each part contributes to the whole. Authors choose organizational patterns deliberately to enhance their message. Recognizing whether a text uses chronological order, cause-effect, compare-contrast, or problem-solution helps you understand the author's purpose and follow the logic.

Key Evidence:

• "For example"

Why others are wrong: B (No formula.), A (Biological, not lab.), D (Supports it.).

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