Enzyme Quiz: Test Your Knowledge! Trivia
.
- 1.Enzymes are usually ____________ in nature.
- A.
Carbohydrate
- B.
Fat
- C.
Iron
- D.
Protein
- 2.Which of the following statements regarding enzymes is NOT true?
- A.
A cell without ribosomes will not be able to produce enzymes.
- B.
An enzyme can still function if the shape of its active site is altered.
- C.
All enzymes are biological catalysts.
- D.
Enzyme action is affected by temperature and pH.
- 3.Which of the following is NOT an example of an enzymatic reaction?
- A.
Break down of proteins into polypeptides in the duodenum
- B.
Curdling of milk in the stomach
- C.
Digestion of cellulose by bacteria
- D.
Emulsification of fats
- 4.Under which conditions would salivary amylase act on a solution of starch most rapidly?
- A.
PH 2, 25°C
- B.
PH 2, 70°C
- C.
PH 7, 25°C
- D.
PH 7, 70°C
- 5.What are the products formed from the breakdown of oil by lipase?
- A.
Amino acids
- B.
Fatty acids and glycerol
- C.
Glucose
- D.
Lipids
- 6.What is the enzyme found in potato that is able to react with hydrogen peroxide?
- A.
Amylase
- B.
Catalase
- C.
Lipase
- D.
Protease
- 7.Which of the following are characteristics of enzymes? 1. Enzymes are highly specific. 2. Enzymes remain unchanged at the end of their reactions. 3. Enzymes are required in large amounts.
- A.
1 and 2 only
- B.
1 and 3 only
- C.
2 and 3 only
- D.
All of the above.
- 8.Which of the following enzymes works well when it is mixed with distilled water?
- A.
Salivary amylase
- B.
Pancreatic amylase
- C.
Pepsin
- D.
Lactase
- 9.Which of the following statements about enzymes is NOT correct?
- A.
Enzymes allow chemical reactions to take a shorter time to complete.
- B.
Enzymes are temperature sensitive.
- C.
Enzymes break down complex substances only.
- D.
Enzymes catalyse reversible reactions.
- 10.According to the 'lock and key' hypothesis, what is represented by the lock and key?
- A.
The lock represents the enzyme while the key represents the substrate.
- B.
The lock represents the active site while the key represents the enzyme.
- C.
The lock represents the product while the key represents the substrate.
- D.
The lock represents the enzyme while the key represents the product.
Questions: 55 | Attempts: 8758 | Last updated: May 11, 2021
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