Prepare three clean test tubes. Label test tubes 1 to 3. Pipette 1 mL of catechol solution and small amount of potato extract in tube1. Pipette 1mL water and a small amount of potato extract in tube 2. Pipette 1 mL of catechol solution and 1 mL water in tube 3. Mix the contents of the tube by shaking gently and place in a water bath at 37deg. C. Examine the tubes after 5 minutes by holding up to light. Record the results.

How do enzyme work?

POTATO OXIDASE

1. Prepare three clean test tubes. Label test tubes 1 to 3.
2. Pipette 1 mL of catechol solution and small amount of potato extract in tube1.

3. Pipette 1mL water and a small amount of potato extract in tube 2.
4. Pipette 1 mL of catechol solution and 1 mL water in tube 3.
5. Mix the contents of the tube by shaking gently and place in a water bath at 37deg. C.

6. Examine the tubes after 5 minutes by holding up to light. Record the results.