Ijmb Model Questions Vol1 2022 Biology Question 8

Practice essay / theory question 8 from the 2022 Ijmb Model Questions Vol1 Biology examination. This question covers Enzymes, Biochemistry .

Ijmb Model Questions Vol1 2022 Biology Essay / Theory

Topics: Enzymes Biochemistry

Question 8 IJMB_MODEL_QUESTIONS_VOL1 • 2022 • BIOLOGY • essay

An enzyme-catalysed reaction is studied at different temperatures and pH values. The following observations are recorded:

Question Parts

( a )

Explain how temperature influences the enzyme’s Vmax and Km, citing the underlying molecular reasons.

( b )

At pH 7.0 the enzyme shows a Km of 0.5 mM and Vmax of 120 µmol·min⁻¹. At pH 5.0 the Km rises to 1.2 mM while Vmax remains unchanged. Discuss what these data reveal about the effect of pH on the enzyme’s active site and overall structure.

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About This Question

This is Ijmb Model Questions Vol1 2022 Biology Question 8. It is one of the essay questions from the 2022 Ijmb Model Questions Vol1 Biology examination.

The question covers Enzymes, Biochemistry .

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