Activities

1. Enzymes are made of what monomers?
   
   
2. The part of the enzyme where the substrate attaches to the enzyme is known as the…
   
   
3. When an enzyme acts on a substrate, what is the end product called?
   
   
4. Molecules that help a reaction happen faster are known as what?

5. When an enzyme is added to a mixture and it doesn’t complete it’s function what could be the reason?
   
   
6. Explain what determines the shape of a protein.

7. When an individual has a fever it can become very dangerous for the body. Explain what could happen to enzymes at extreme temperatures.
   
   
8. A person that is lactose intolerant cannot digest the sugar lactose in milk. Instead they will often take a pill called “Lactaid” what is Lactaid most likely made of?

Answer Key/Rubric

1. Amino acids because they are proteins
   
   
2. Active site
   
   
3. The product
   
   
4. Acceptable answers include, but are not limited to:

• Enzymes
• Catalysts

5. Acceptable answers include, but are not limited to:

• The substrate isn’t available.
• The ph or temperature might be wrong.
• The enzyme might be denatured.

6. Acceptable answers include, but are not limited to:

• The order of the amino acids and then their attraction to one another.
• Temperature and pH can also change the shape of the enzyme. (denaturing the enzyme)

7. Acceptable answers include, but are not limited to:

• Because enzymes are proteins, at high temperatures they can lose their shape and then not function correctly.
• The substrate won’t fit into the active site.

8. Acceptable answers include, but are not limited to:

• Lactaid is most likely made up of enzymes that help the person digest lactose.