CCEA GCE Life & Health Sciences Practice Questions - CCEA GCE Life And Health Sciences (Northern Ireland) Exam

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Why is a control sample or control experiment included when testing the effect of enzyme concentration on reaction rate?

To double the number of data points without changing the method To provide a baseline showing results when the independent variable is zero or inactive To replace the need for repeats To ensure the reaction always goes to completion

Correct Answer:

To provide a baseline showing results when the independent variable is zero or inactive

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