Enzyme Activity and Temperature B.C.2

Which graph shows the effects of temperature on the activity of an enzyme?

• 
• 
• 
• 

Which question could be answered using the data to be collected?

• How does the enzyme’s shape change over time?

• How does temperature affect the reaction rate of the enzyme?

• What is the pH level of the enzyme?

• How does light intensity affect the enzyme activity?

What is a reasonable hypothesis for this study?

• Activation energy will be lowest in tubes 2 and 3.

• The enzyme’s shape will adapt to each temperature setting.

• The enzyme’s reaction rate will be greatest from 0 to 5 minutes.

• The optimum reaction rate of this enzyme will be seen in tubes 4 or 5.

Which enzyme would be most efficient in an environment where the pH level can fluctuate between acidic and basic?

• enzyme A

• enzyme B

• enzyme C

• enzyme D

What would happen if enzyme A was placed in an environment with a pH of 9?

• It would be highly active.

• It would have reduced activity.

• It would be inactive.

• It would denature.

What would happen if enzyme A was moved to an environment with pH4?

• Enzyme A would become more efficient.

• Enzyme A would slow or stop functioning.

• Enzyme A would be transformed back into RNA.

• Enzyme A would become the substrate for enzyme D.