Function questions ("The third paragraph functions primarily to…") do not ask what the paragraph says. They ask what job it does in the passage's architecture. Students miss these because they pick the answer that best summarizes the paragraph's content — which is exactly the trap the test sets.
Think like an architect. Every paragraph in a well-built passage has a structural job. Learn the common ones:
- Introduce the phenomenon or puzzle.
- Explain the mechanism.
- Raise the stakes (why it matters).
- Present evidence for a claim.
- Raise an objection or complication.
- Answer the objection / qualify the claim.
- Propose an application or look ahead.
The method: ask what the passage would lose without this paragraph. Delete it mentally. Does the argument still stand? If the passage would lose its "why should I care," the paragraph's job was raising the stakes — even if its content is all about biofilms.
Content vs. function — feel the difference. Consider: "The paragraph describes biofilms and their antibiotic resistance." That is content. "The paragraph establishes why quorum sensing matters medically, bridging the mechanism to the discussion of therapies." That is function. The correct answer almost always sounds like the second one: it names the role, not the topic.
Worked example. The third paragraph of the quorum-sensing passage in your drill bank describes biofilms and toxin release in detail. A content-summary answer — "compare the antibiotic resistance of biofilms with that of free-floating cells" — names something the paragraph mentions. But the paragraph's job is bigger: it shows that quorum-sensing-regulated behaviors have serious medical consequences, which is what makes the final paragraph's discussion of quorum-quenching therapies worth having. Without paragraph 3, the passage would be an interesting biology story with no stakes. Its function: establish significance.
Key takeaways
- Function = the paragraph's structural job, not its topic.
- Ask the deletion test: what would the passage lose without it?
- Correct answers name roles (raises the stakes, answers an objection); traps restate content.
- Map each paragraph to one job as you read — function questions then answer themselves.