Enzymes and chemical digestion Quiz
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5 questions, one answer each
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1. Which enzyme breaks down protein?
- A. Amylase
- B. Lipase
- C. Protease
- D. Maltase
2. What happens when an enzyme is denatured?
- A. It is used up in the reaction
- B. The shape of its active site changes
- C. It becomes more active
- D. It turns into a substrate
3. Which are the products of lipase digesting fat?
- A. Fatty acids and glycerol
- B. Amino acids
- C. Maltose
- D. Glucose and fructose
4. Why is an enzyme specific to one substrate?
- A. It is made only in one organ
- B. The active site only fits one shape of substrate
- C. It works only at one temperature
- D. It is used up quickly
5. In an investigation, which result shows that amylase has digested all the starch?
- A. Iodine turns blue-black
- B. Benedict's turns blue
- C. The solution turns purple
- D. Iodine stays orange-brown