SAT Reading & Writing · Command of Evidence (quantitative)
A student claims that enzyme activity increased steadily as temperature rose from 15 C to 35 C. Which choice most effectively uses the…
A laboratory measured enzyme activity at three temperatures.
| Temperature | Relative enzyme activity |
|---|---|
| 15 C | 42 |
| 25 C | 78 |
| 35 C | 61 |
A student claims that enzyme activity increased steadily as temperature rose from 15 C to 35 C. Which choice most effectively uses the data to challenge the claim?
| Temperature | Relative enzyme activity |
|---|---|
| 15 C | 42 |
| 25 C | 78 |
| 35 C | 61 |
A student claims that enzyme activity increased steadily as temperature rose from 15 C to 35 C. Which choice most effectively uses the data to challenge the claim?
Answer and explanation
Answer: C: Activity rose from 42 to 78 between 15 C and 25 C but then fell to 61 at 35 C.
The student's claim is that activity rose steadily across all three temperatures, and C directly disproves that by reporting the actual pattern: a rise followed by a fall. A and B each report a single data point without showing the overall trend the claim is about. D is true but doesn't address whether the increase was steady.
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