Enzymes #2

Which of the following is true according to the diagram below?

• Enzyme A has low activity over a broad range of temperatures.

• Enzyme B works best at 49°.

• Enzyme A has high activity at a very specific temperature.

• Enzyme B has no activity.

Based on the graph above, at what temperature range is enzyme activity at its greatest?

Complete the statement below using the correct terms. Answers may be used more than once. A chemical reaction can be sped up when our bodies use a substance called a(n) (a)   . These help lower the (b)   needed to start the (c)   . Move the correct answers to the correct boxes.

• catalyst

• activation energy
• reaction
• enzyme

Which of these will most likely happen if an enzyme is added to a certain chemical reaction? Select TWO correct answers.

• The rate of reaction will decrease.

• The reaction will completely stop.

• The rate of reaction may speed up or may slow down.

• The activation energy will be lowered.

• The rate of reaction will start to increase.

The pH that will cause this particular enzyme to have a higher rate of reaction is: