18) cro
The enzymatic hydrolysis of sucrose by the enzyme sucrase will result in the formation of its two monosaccharide
components, glucose and fructose, as seen in the model above. The activity of an enzyme is affected by many
factors including temperature and pH. Each enzyme has an optimum temperature and pH at which its reaction
rate is fastest. The optimum pH range for sucrase activity is 4 - 8.
Imagine the pH of the environment in which the hydrolysis of sucrose is to occur has dropped to 2.
How will this drop in pH influence point in the model?
A)
Eliminate
B)
The enzyme (B) will allow less of the substrate (A) to move into the active
site (0)
More of the substrate (A) will fit into the active site (C), so more products
will be produced
The substrate (A) will no longer fit into the active site (9 because the
enzyme has changed shape.
There will be no change to the components of point D with a drop in PH;
only temperature can denature the enzyme.
0)
D)