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.​

the denominator has a very specific role.

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.