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Which one of the following statements about enzymes is correct? A - VCE - SSCE Chemistry - Question 6 - 2019 - Paper 1
Question 6
Which one of the following statements about enzymes is correct? A. The induced fit model suggests that the shape of an enzyme remains constant throughout a catalyse... show full transcript
Worked Solution & Example Answer:Which one of the following statements about enzymes is correct? A - VCE - SSCE Chemistry - Question 6 - 2019 - Paper 1
Step 1
B. Enzymes may have their tertiary structure altered during a catalysed reaction.
Answer
The correct statement regarding enzymes is that they may have their tertiary structure altered during a catalysed reaction. This is important because enzymes are dynamic molecules; their active sites can change shape to better fit the substrate during the reaction process. This flexibility often results in an increase in reaction efficiency as the enzyme adjusts to accommodate the substrate.
Other options are incorrect for the following reasons:
- A. The induced fit model suggests that the enzyme changes shape when the substrate binds, meaning the shape is not constant throughout the reaction.
- C. While enzymes do operate over a range of temperatures, this statement is vague and does not address the specific nature of enzyme function.
- D. Enzymes do not change the equilibrium constant; they only speed up the rate at which equilibrium is reached.