IB Biology SL C1.1 Enzymes and metabolism questions

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Question 1

Multiple choiceEasy1 mark

A cell’s metabolic reactions must occur quickly enough to support its activities. Which role of enzymes provides this benefit?

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Answer: D. Enzymes are catalysts that increase the rates of reactions. Faster metabolic reactions can support the activities of the cell.

A: confuses catalysis with increasing the supply of reactants. B: treats enzymes as an energy source rather than catalysts. C: treats enzymes as reactants that are converted into products.

Remember: enzymes increase reaction rates without being used up.

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