Title: Chicken Liver Lab
Length of Time: 4 days
Objective: Students will know that it takes a reaction (possibly enzyme catalyzed) to convert biomass into a more usable form. Students will analyze and present their findings on the lab they complete to the class on the enzyme action that is affected by an environmental variable.
Standards: Biology Standards: B.1.1, B1.2, B.1.3
Biomass Standards: Students will know that it takes a reaction (possibly enzyme catalyzed) to convert biomass into a more usable form.
21st Century Standards: Collaboration, Critical Thinking, Communication
Materials:
Chicken Liver
Hot plate
Hydrogen Peroxide
3 - 100mL beakers
10mL graduated cylinder
Ice
15 test tubes
Thermometer
Test tube rack
Triple Beam Balance
Petri Dish
Acidic Solution
Basic Solution
pH paper
Scalpel
Ruler
General Procedure:
Length of Time: 4 days
Objective: Students will know that it takes a reaction (possibly enzyme catalyzed) to convert biomass into a more usable form. Students will analyze and present their findings on the lab they complete to the class on the enzyme action that is affected by an environmental variable.
Standards: Biology Standards: B.1.1, B1.2, B.1.3
Biomass Standards: Students will know that it takes a reaction (possibly enzyme catalyzed) to convert biomass into a more usable form.
21st Century Standards: Collaboration, Critical Thinking, Communication
Materials:
Chicken Liver
Hot plate
Hydrogen Peroxide
3 - 100mL beakers
10mL graduated cylinder
Ice
15 test tubes
Thermometer
Test tube rack
Triple Beam Balance
Petri Dish
Acidic Solution
Basic Solution
pH paper
Scalpel
Ruler
General Procedure:
- Students will measure the height of the oxygen levels produced in the chicken liver mixture before starting.
- They will add the liver which contains the enzyme catalase to the tubes of H2O2 and place it in either in a water bath or ice bath and then measure the height of the oxygen levels produced at a time interval of their choosing.
- They may decide to test the effect of pH and then they would check the baseline pH of the solution as well.
- They would then add acidic or basic mixtures in order to change the pH by 0.5 each time.
- They would test the amount of
- They will then present their results and conclusions to the class in a board room discussion.
- Some students may choose to test the amount of substrate concentration and in that case they will change the amounts of H2O2 in the tubes and place the same amount of chicken liver to each tube and then record the height of the bubbles produced in each H2O2 tube.
- Other groups may decide to test the amount of enzyme and in order to do that they would vary the amount of chicken liver to the different test tubes with the same amount of H2O2 and measure the amount of bubbles produced in each tube.
chicken_liver_lab.doc | |
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