Enzyme Quiz PreAP 12/2

Which of the following conclusions can be drawn from this graph?

• The optimum pH of the enzyme is 6.6.
  
• This enzyme works best in highly acidic environments
  
• The enzyme’s activity increases as pH increases 7.0 to 9.0
  
• The enzyme’s activity is greater around pH of 8.0 .
  

Each enzyme only has 1 substrate that will fit its active site.  What is this called?

• reusable
• catalyst
• specific
• fragile

Letter E...

• active site
• enzyme
• substrate
• products

Based on the graph, what temperature does this enzyme work best? 

• 15 C
• 40 C
• 30 C
• 47 C

Analyze the graph pictured.

What is the estimated optimum pH at which this enzyme functions?

• 7

• 2

• 4

• 10

Based on the graph, what pH does Enzyme C work best at?

• 1.5

• 6

• 8

• 9

Enzymes speed up the rate of chemical reactions by.....

• giving you extra oxygen.

• absorbing water released when polymers are formed.

• lowering the activation energy.

• combining with excess hydrogen to form a gas.

Using the diagram, match the following.

• Active Site

• A

• Enzyme Substrate Complex

• E

• Product

• B

• Enzyme

• C

• Substrate

• D

A prolonged period of high fever is dangerous to humans because... (choose TWO that apply)

• It makes the enzymes work faster

• It denatures the enzyme and stops working

• It can make the enzyme function better than it did before

• It can change the shape of an enzyme so it can not bind to the right substrate