1. Enzymes speed up the rate of a chemical reaction. True
2. Which of the following are true of an enzyme-catalyzed reaction?
Check all that apply. An enzyme speeds up the conversion of
substrate to product; an enzyme reduces the activation energy;
enzymes are not used up in the chemical reaction
3. Which are method(s) to measure the activity of an enzyme? Check
all that apply. Measuring how much product is made; measuring
how much substrate is used
4. To determine the activity of an enzyme, you can compare the
concentration of the enzyme before and after the chemical reaction
False. Because the enzyme is not used up in the reaction, the
concentration of enzyme will not change.
5. Different types of enzymes may differ in optimal temperature and
pH requirements, depending upon where and how they function.
True
6. an enzyme reduces the energy necessary to start a chemical
reaction. This means that the rate of the reaction will increase
7. what substance in a chemical reaction will not change in
concentration as the reaction proceeds? the enzyme
8. What happens to the amount of enzyme during a chemical
reaction? it stays the same
9. Catalase is the enzyme that catalyzes the reaction that breaks down
hydrogen peroxide to oxygen and water. What will happen as the
, reaction between catalase and hydrogen peroxide proceeds? the
amount of hydrogen peroxide decreases; the amount of oxygen gas
formation increases.
10. how will you identify that the reaction is occurring? the
production of oxygen will cause bubbling in the test tube.
11. the activity of catalase can be measured as the rate of
Hydrogen peroxide breakdown;
Oxygen formation.
12. what is the purpose of preparing a tube with water and
hydrogen peroxide? negative control experiment
13. in which tubes did hydrogen peroxide get broken down into
water and oxygen? Catalase + hydrogen peroxide
14. when the enzyme catalase is mixed with water, oxygen
bubbles are produced. false
15. which is required for the reaction to work? Hydrogen
peroxide solution & catalase solution
16. what combo demonstrates that the enzyme catalase is specific
for the substrate hydrogen peroxide? catalase + water
17. Increasing the concentration of enzyme at the beginning of
the experiment result in ____ substrate interacting w/ the enzymes
per unit of time. More
18. if enough substrate is present, adding more enzyme to a
reaction mixture will _____ the rate of product formation. Increase
2. Which of the following are true of an enzyme-catalyzed reaction?
Check all that apply. An enzyme speeds up the conversion of
substrate to product; an enzyme reduces the activation energy;
enzymes are not used up in the chemical reaction
3. Which are method(s) to measure the activity of an enzyme? Check
all that apply. Measuring how much product is made; measuring
how much substrate is used
4. To determine the activity of an enzyme, you can compare the
concentration of the enzyme before and after the chemical reaction
False. Because the enzyme is not used up in the reaction, the
concentration of enzyme will not change.
5. Different types of enzymes may differ in optimal temperature and
pH requirements, depending upon where and how they function.
True
6. an enzyme reduces the energy necessary to start a chemical
reaction. This means that the rate of the reaction will increase
7. what substance in a chemical reaction will not change in
concentration as the reaction proceeds? the enzyme
8. What happens to the amount of enzyme during a chemical
reaction? it stays the same
9. Catalase is the enzyme that catalyzes the reaction that breaks down
hydrogen peroxide to oxygen and water. What will happen as the
, reaction between catalase and hydrogen peroxide proceeds? the
amount of hydrogen peroxide decreases; the amount of oxygen gas
formation increases.
10. how will you identify that the reaction is occurring? the
production of oxygen will cause bubbling in the test tube.
11. the activity of catalase can be measured as the rate of
Hydrogen peroxide breakdown;
Oxygen formation.
12. what is the purpose of preparing a tube with water and
hydrogen peroxide? negative control experiment
13. in which tubes did hydrogen peroxide get broken down into
water and oxygen? Catalase + hydrogen peroxide
14. when the enzyme catalase is mixed with water, oxygen
bubbles are produced. false
15. which is required for the reaction to work? Hydrogen
peroxide solution & catalase solution
16. what combo demonstrates that the enzyme catalase is specific
for the substrate hydrogen peroxide? catalase + water
17. Increasing the concentration of enzyme at the beginning of
the experiment result in ____ substrate interacting w/ the enzymes
per unit of time. More
18. if enough substrate is present, adding more enzyme to a
reaction mixture will _____ the rate of product formation. Increase
