Enzymes are essential molecules in living beings because they speed up various metabolic reactions. Important functions they contribute to include digestion, metabolism, and cellular respiration. In fields including medicine, biology, and biotechnology, an understanding of enzymes and their roles is crucial.
In this MCQ on Enzymes article, we’ll use a quiz format to learn more about enzymes and their unique functions. This multiple-choice exam will test your knowledge and provide vital insights into the world of enzymes, whether you are a student of biochemistry, a professional in the field of biotechnology, or just someone interested in learning more about enzymes. What are we waiting for?
MCQ on Enzymes
1. What is an enzyme?
a) A type of protein
b) A type of lipid
c) A type of carbohydrate
d) A type of nucleic acid
2. Which of the following is NOT a characteristic of enzymes?
a) They are catalysts
b) They are consumed during the reaction
c) They are specific in their action
d) They lower the activation energy of a reaction
3. What is the active site of an enzyme?
a) The part of the enzyme that binds to the substrate
b) The part of the enzyme that is consumed during the reaction
c) The part of the enzyme that is specific in its action
d) The part of the enzyme that lowers the activation energy of a reaction
4. Which of the following is NOT a type of enzyme inhibition?
a) Competitive inhibition
b) Non-competitive inhibition
c) Feedback inhibition
d) Cooperative inhibition
5. Enzymes can be denatured by:
A) Extreme pH
B) Extreme temperature
C) Presence of detergents
D) All of the above
6. Which of the following is not a co-factor required by enzymes?
A) Metal ions
B) Vitamins
C) Coenzymes
D) Hormones
7. Which of the following is not a digestive enzyme?
A) Amylase
B) Lipase
C) Protease
D) Collagenase
8. What is term used to describe optimum pH range for an enzyme’s activity?
a) Enzyme range
b) pH range
c) Optimum range
d) Buffer range
9. What is term used to describe optimum temperature range for an activity?
a) Enzyme range
b) Temperature range
c) Optimum range
d) Thermal range
10. Which of the following is NOT a factor that can affect enzyme activity?
a) pH
b) Temperature
c) Substrate concentration
d) Enzyme color
11. Which of the following is an example of an enzyme?
a) DNA
b) RNA
c) Insulin
d) ATP
12. What is the name of the process by which enzymes are denatured?
a) Hydrolysis
b) Oxidation
c) Reduction
d) Protein folding
13. What is the name of the enzyme that breaks down carbohydrates?
a) Amylase
b) Protease
c) Lipase
d) Nuclease
14. What is the name of the enzyme that breaks down proteins?
a) Amylase
b) Protease
c) Lipase
d) Nuclease
15. What is the name of the enzyme that breaks down lipids?
a) Amylase
b) Protease
c) Lipase
d) Nuclease
Answers
1. a) A type of protein
2. b) They are consumed during the reaction
3. a) The part of the enzyme that binds to the substrate
4. d) Cooperative inhibition
5. d) All of the above
6. d) Hormones
7. d) Collagenase
8. c) Optimum range
9. c) Optimum range
10. d) Enzyme color
11. c) Insulin
12. b) Oxidation
13. a) Amylase
14. b) Protease
15. c) Lipase