5: Three enzymes, P, Q and R, were extracted from different regions of the alimentary
canal of a mammal. The effect of pH on the activity of the enzymes was investigated at
40°C. The results are shown in Fig. 3.2.
R
100 -
rate of
enzyme
activity /
arbitrary
M
25
0
1 1
1
pH
Fig. 3.2
() Explain why the investigation was carried out at 40°C.​

What would most likely happen if a person increased the amount of saturated fat in his or her diet? the person's risk of cardiovascular disease would increase. the person's risk of cardiovascular disease would decrease. the person's bad cholesterol would decrease. the person’s good cholesterol would increase.

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