Shanxian Chemical
SUPPLEMENTS
Liver Hydrogen Peroxide Experiment Lab Report
Experimental Report on Liver and Hydrogen Peroxide
I. OBJECTIVE OF THE EXPERIMENTAL
To explore the role of the liver in the decomposition reaction of hydrogen peroxide and related principles.
II. EXPERIMENTAL MATERIALS
Fresh liver (appropriate amount), hydrogen peroxide solution (certain concentration), mortar, test tube, dropper, alcohol lamp, match, etc.
III. EXPERIMENTAL STEP
1. ** LIVER TREATMENT **: The fresh liver is placed in a mortar and fully ground to make a liver grinding liquid for later use.
2. ** EXPERIMENTAL GROUP **: Take a clean test tube of Ruogan and divide it into experimental group and control group.
3. ** Operation of the experimental group **: Add an appropriate amount of liver grinding liquid to the test tube of the experimental group, and then add hydrogen peroxide solution dropwise to observe and record the reaction phenomenon in the test tube.
4. ** Operation of the control group **: Add only the same amount of hydrogen peroxide solution to the test tube of the control group, without adding the liver grinding liquid, and also observe and record the reaction phenomenon.
5. ** Test gas **: When there is an obvious reaction in the experimental group to produce gas, use a ignited but no flame sanitary incense close to the mouth of the test tube to check whether the produced gas is oxygen.
IV. Experimental phenomenon
1. ** Experimental group **: Immediately after adding the liver grinding liquid and hydrogen peroxide solution, it was observed that a large number of bubbles were rapidly generated in the test tube, and the reaction was violent. The sanitary incense with Mars was used to approach the mouth of the test tube, and the sanitary incense was reignited to prove that the gas produced was oxygen.
2. ** control group **: Only the test tube with hydrogen peroxide solution was added, and the bubble generation was slow and small. It was approached with the sanitary incense with Mars, and the sanitary incense did not change significantly.
5. Experimental analysis
1. Liver cells contain catalase, which can catalyze the decomposition of hydrogen peroxide into water and oxygen. In the experimental group, due to the addition of the liver grinding liquid, the catalase in it quickly contacts the hydrogen peroxide and plays a catalytic role, so that the hydrogen peroxide decomposes rapidly, generating a large amount of oxygen, resulting in violent bubble generation phenomenon, and can make the sanitary incense with Mars reignite.
2.In the control group, hydrogen peroxide decomposes slowly without enzyme catalysis, so the generation of bubbles is less and slower, which is insufficient to make the sanitary incense with Mars reignite.
Sixth, Experimental Conclusion
Catalase in the liver has a significant catalytic effect on the decomposition of hydrogen peroxide, which can accelerate the chemical reaction rate of hydrogen peroxide decomposition into water and oxygen.
I. OBJECTIVE OF THE EXPERIMENTAL
To explore the role of the liver in the decomposition reaction of hydrogen peroxide and related principles.
II. EXPERIMENTAL MATERIALS
Fresh liver (appropriate amount), hydrogen peroxide solution (certain concentration), mortar, test tube, dropper, alcohol lamp, match, etc.
III. EXPERIMENTAL STEP
1. ** LIVER TREATMENT **: The fresh liver is placed in a mortar and fully ground to make a liver grinding liquid for later use.
2. ** EXPERIMENTAL GROUP **: Take a clean test tube of Ruogan and divide it into experimental group and control group.
3. ** Operation of the experimental group **: Add an appropriate amount of liver grinding liquid to the test tube of the experimental group, and then add hydrogen peroxide solution dropwise to observe and record the reaction phenomenon in the test tube.
4. ** Operation of the control group **: Add only the same amount of hydrogen peroxide solution to the test tube of the control group, without adding the liver grinding liquid, and also observe and record the reaction phenomenon.
5. ** Test gas **: When there is an obvious reaction in the experimental group to produce gas, use a ignited but no flame sanitary incense close to the mouth of the test tube to check whether the produced gas is oxygen.
IV. Experimental phenomenon
1. ** Experimental group **: Immediately after adding the liver grinding liquid and hydrogen peroxide solution, it was observed that a large number of bubbles were rapidly generated in the test tube, and the reaction was violent. The sanitary incense with Mars was used to approach the mouth of the test tube, and the sanitary incense was reignited to prove that the gas produced was oxygen.
2. ** control group **: Only the test tube with hydrogen peroxide solution was added, and the bubble generation was slow and small. It was approached with the sanitary incense with Mars, and the sanitary incense did not change significantly.
5. Experimental analysis
1. Liver cells contain catalase, which can catalyze the decomposition of hydrogen peroxide into water and oxygen. In the experimental group, due to the addition of the liver grinding liquid, the catalase in it quickly contacts the hydrogen peroxide and plays a catalytic role, so that the hydrogen peroxide decomposes rapidly, generating a large amount of oxygen, resulting in violent bubble generation phenomenon, and can make the sanitary incense with Mars reignite.
2.In the control group, hydrogen peroxide decomposes slowly without enzyme catalysis, so the generation of bubbles is less and slower, which is insufficient to make the sanitary incense with Mars reignite.
Sixth, Experimental Conclusion
Catalase in the liver has a significant catalytic effect on the decomposition of hydrogen peroxide, which can accelerate the chemical reaction rate of hydrogen peroxide decomposition into water and oxygen.
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