1.13

Question 1

Enzymes have specific functions and are affected by factors such as?

Answer 1

Temperature
presence of inhibitors
pH

Question 2

Temperature and pH

Answer 2

For all enzymes there is an optimum temperature and pH level at which the maximum amount of collisions occur in the active sites.

Question 3

tEMP

Answer 3

As temperature decreases there is less movement of particles and fewer collisions so enzyme activity decreases.

Temperature above optimal for a given enzyme will cause the enzyme to denature and the enzyme will no longer function

The rate of reaction will decrease significantly

Question 4

pH

Answer 4

pH either above or below the optimal given for an enzyme will cause the rate of the enzyme activity to decrease thus decreasing the rate of reaction

very low or high pH will also denature enzymes.

Question 5

Enzyme inhibitors

Answer 5

Competitive and non competitive

Question 6

Competitive

Answer 6

very similar in shape to the substrate so they bind to the active site of the enzymes and prevent the substrate from binding

adding more substrate will reduce the effect of the inhibitor

Question 7

Non competitive

Answer 7

Inhibitors binds to an enzyme but not in its active site

causing the active sity to change its shape and the substrate o longer fits

adding more substrate wll have no effect on the reation rate