Enzymes Review

The enzyme would most likely affect reactions involving...

• molecule A, only

• molecule C, only

• molecules B and D

• molecules A and C

• All molecules A, B, C and D

Tags

NGSS.HS-PS1-5

NGSS.HS-LS2-3

Which graph, A or B, shows the amount of substrate going to zero faster?

• Graph A

• Graph B

Tags

NGSS.HS-PS1-5

NGSS.HS-LS1-7

If both graphs A and B show the rate of an enzyme, which enzyme is more effective? Justify your answer.

• Graph A

• Graph B

What 3 variables affect enzyme activity in each of the graphs? Select the THREE correct answers.

• Temperature

• pH

• Substrate concentration

• Molecule color

What is the optimal condition for each enzyme represented by the graphs? The optimal condition is when the enzyme would work best.

• 38

• 25

• 7

• 10

• Saturation point

What can affect the speed of an enzyme? pH, temperature &......

Explain what happens when hypothermia sets in (when enzymes get too cold!):

The enzymes reaction rate (speed) will (increase or decrease)?

Tags

NGSS.HS-PS1-5

When an enzyme gets destroyed or altered, that is when the enzyme gets ___________

During hypothermia, enzyme activity decreases. Does the same thing happen when enzymes get too hot? Why or why not?

• Yes, because high temperature also denatures (destroys) the enzymes

• No, because high temperature increases enzyme activity

• No, because high temperature has no effect on enzyme activity

Tags

NGSS.HS-PS1-5

Describe the difference between the relationship between enzyme concentration and reaction rate.

• As enzyme concentration increases, reaction rate increases

• As enzyme concentration increases, reaction rate decreases

• There is no relationship between enzyme concentration and reaction rate