Pineapple Enzyme Lab

Pineapple Enzyme Lab

Do First (10 min)

Read Pre lab assignment with your group

Answer questions 1-4 on Pre lab assignment

Multiple Choice

Enzymes are...

• Carbohydrates

• Proteins

• Nucleic Acids

• Lipids

Multiple Choice

What is the purpose for enzymes?

• slow down chemical reactions

• regulate the size of a cell

• regulate the shape of a cell

• speed up chemical reactions

Multiple Choice

Which letter represents the ENZYME?

• A

• B

• C

• F

Multiple Choice

Which letter represents the ACTIVE SITE?

• A

• B

• C

• F

Multiple Choice

Which letter represents the SUBSTRATE?

• A

• B

• C

• F

Multiple Choice

Which letter represents the PRODUCTS?

• A

• B

• C

• F

1.     Make a hypothesis explaining how colder temperatures affect molecules in a reaction.

Things to remember:

All enzyme-catalyzed reactions occur under specific environmental conditions such as different temperatures or pH levels that affect how fast the enzymes work. How fast an enzyme works, or its rate of reaction, can be measured by how quickly the product is produced. The conditions under which an enzyme normally works are called optimum conditions.

2. Based on that hypothesis, make a prediction about how well the enzyme will work when the Pineapple is frozen.

Raise your hand if you have any questions

Clean up after yourself

Throw away Jello & pineapples when done

Wash test tubes & petri dishes

DO NOT eat any of the materials!

Lab Time! (25 min)