9700 · topic questions
Factors that affect enzyme action
9 past-paper questions on Factors that affect enzyme action
P. jirovecii produces an enzyme known as 1,3-β-D-glucan synthase. The enzyme catalyses the synthesis of 1,3-β-D-glucan. The…
Practise the full question →With reference to Fig. 4.1, describe the differences in the results at pH 4.5 and pH 5.9 and suggest explanations for the…
Practise the full question →Biofuels contain alcohols that are produced by the fermentation of sugars derived from crop waste. This waste contains cellulose…
Practise the full question →With reference to Fig. 8.2: • • explain the curve between A and B explain why the curve levels off after C.
Practise the full question →Explain the results shown in Fig. 6.1.
Practise the full question →In the experiment used to obtain the results shown in Fig. 5.1, the temperature and pH were standardised. Explain what the…
Practise the full question →Determine the Michaelis–Menten constant, Km, for α-galactosidase at pH 4.5 using the data in Fig. 4.1. State the unit for the Km…
Practise the full question →State two variables that need to be kept constant in this experiment.
Practise the full question →Inhibitors can have an effect on Vmax, the maximum rate of reaction, and Km, the Michaelis–Menten constant, of HRP. Fig. 6.2…
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