
18.11 Enzyme
Authored by Anissa Rodriguez
Biology
10th Grade
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4 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement best describes the enzyme represented in the graphs below?
This enzyme works best at a temperature above 50ºC and a pH above 12.
This enzyme works best at a temperature of 50ºC and a pH of 12.
This enzyme works best at a temperature of 35ºC and a pH of 8.
Temperature and pH have no effect on the action of this enzyme.
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SC.912.L.18.11
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The diagram below shows how living things use enzymes in chemical reactions to release energy. How do enzymes affect the reactions in which they take part?
Most enzymes slow down chemical reactions.
Enzymes are converted into products in the reaction.
Enzymes increase the activation energy of the reaction.
Enzymes decrease the activation energy of the reaction.
Tags
SC.912.L.18.11
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The human body maintains a temperature of around 98.6 degrees at all times. Enzymes are involved in almost every chemical reaction in the body. Which of the following describes the connection between these two statements?
Enzymes function best at a specific temperature.
The body needs to be warm to prevent hypothermia.
The body is kept relatively warm to prevent too much enzyme action.
There is no connection between the two statements.
Tags
SC.912.L.18.11
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In living cells, enzymes act as catalysts, which may reduce the amount of activation energy required for a chemical reaction to occur. In the graphs below, pathway x is a solid line representing the uncatalyzed reaction. The dotted line shows the catalyzed reaction. Which graph best illustrates the changes in a reaction when the catalyst reduces the amount of energy required?
Tags
SC.912.L.18.11
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