Liver lab - enzyme lab report PDF

Title	Liver lab - enzyme lab report
Course	Explorations in Biology
Institution	Community College of Rhode Island
Pages	2
File Size	77.6 KB
File Type	PDF
Total Downloads	105
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Summary

enzyme lab report...

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Thaviry Kong Per.4 5/2/21 Mrs. Steitz Biology Enzyme Lab Purpose: Does cooking or crushing liver affect the enzyme action? Liver has an enzyme that changes hydrogen peroxide>water and oxygen (2H2O2-->2H2O+O2) . The independent variable is the liver, and the dependent is the reaction. This lab ties into how DNA has the code for enzymes. This is an application to how enzymes are responsible for everything in the body. Hypothesis: If the enzyme action will be greatest in raw liver, then it’ll be the least in cooked liver.

Materials: Three test tubes, rack, graduated cylinder, hydrogen peroxide, balloons, raw and cooked liver, and crusher.

Procedure: 1.

Obtain three test tubes, rack, and graduated cylinder.

1.

Place cooked, raw and crushed liver into test tubes.

1.

Add 20ml of hydrogen peroxide.

1.

Observe and record results.

Data and Measurements: COOKED LIVER

CRUSHED LIVER

RAW LIVER

AMOUNT OF BUBBLES: SMALL

AMOUNT OF BUBBLES: HIGH

AMOUNT OF BUBBLES: MEDIUM

TEMPERATURE: COOL

TEMPERATURE: HOT

TEMPERATURE: WARM

BALLOON: NOT INFLATED

BALLOON: INFLATED

BALLOON: INFLATED

Observations: The cooked liver was cold to the touch, and had no bubbles. The balloon was not inflated. Raw liver had bubbles and was warm. The crushed liver was hot, and had bubbles. However, their balloons were inflated. This is what you can observe in this experiment.

Conclusion: The cooked liver had almost no water and oxygen in it. It only produced small bubbles, and was cool to the touch. Raw liver had water and oxygen since it produced bubbles. Also, it was warm. Crushed liver had the most water and oxygen since it produced the most bubbles. It also, was hot. The balloons went from not inflated to inflated, and largely inflated. The potential errors in this lab are air leakage, not crushing properly, and spilling the hydrogen peroxide. In conclusion, the hypothesis that the enzyme action will be greatest in crushed liver, and least in cooked liver is correct....