Shanxian Chemical
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Catalase Yeast Hydrogen Peroxide Experiment
The Yeast Hydrogen Peroxide Experiment of Enzymatic Reaction
Experimental Background
All things in the world contain wonderful principles. In the field of biochemistry, enzymes are like divine craftsmen, promoting all kinds of reactions, and the rate is amazing. Today, based on the reaction between catalase and hydrogen peroxide contained in yeast, we want to explore the magical efficiency of enzymes.
Experimental Materials
1. ** Yeast **: Common baker's yeast can also contain catalase.
2. ** Hydrogen peroxide solution **: Take an appropriate concentration as the reaction substrate.
3. ** Experimental equipment **: Several graduated test tubes, droppers, measuring cylinders, timers, protective equipment such as goggles, gloves, etc.
Experimental steps
1. First measure an equal amount of hydrogen peroxide solution in a measuring cylinder and dispense it into several clean test tubes.
2. Take a little yeast, add it to each test tube one by one with a dropper, and start the timer at the same time.
3. Immediately observe the reaction phenomenon in the test tube, record the rate of bubble formation, the amount, and the intensity and duration of the reaction.
Experimental principle
Catalase in yeast, when it encounters hydrogen peroxide, if it is locked, catalyzes its decomposition. Hydrogen peroxide then converts into water and oxygen, and the reaction formula is as follows: $2H_ {2} O_ {2}\ stackrel {catalase }{=\!=\!=} 2H_ {2} O + O_ {2}\ uparrow $. The action of the enzyme decreases the activation energy required for the reaction, making the reaction easy to occur, so the bubbles are rapid.
Experimental results and analysis
If a large number of bubbles and rapid outflow, it can be seen that the catalase activity is high and the catalytic efficiency is good. This is because the activity of the enzyme is affected by many factors, such as temperature, pH, etc. Under moderate conditions, the enzyme activity is abundant; otherwise, it is weak or even inactive. In this experiment, if the reaction environment is suitable, the enzyme and the substrate fit well, and the reaction is spontaneous.
Conclusion
This experiment shows the key function of enzymes in biochemical reactions. Catalase in yeast plays an important role in the decomposition of hydrogen peroxide. Knowing this, it can also be seen that the biochemistry of all things depends on all kinds of exquisite mechanisms. Enzymes are also essential for their centers. In the future, exploring nature and applying biochemical techniques will be of great inspiration.
Experimental Background
All things in the world contain wonderful principles. In the field of biochemistry, enzymes are like divine craftsmen, promoting all kinds of reactions, and the rate is amazing. Today, based on the reaction between catalase and hydrogen peroxide contained in yeast, we want to explore the magical efficiency of enzymes.
Experimental Materials
1. ** Yeast **: Common baker's yeast can also contain catalase.
2. ** Hydrogen peroxide solution **: Take an appropriate concentration as the reaction substrate.
3. ** Experimental equipment **: Several graduated test tubes, droppers, measuring cylinders, timers, protective equipment such as goggles, gloves, etc.
Experimental steps
1. First measure an equal amount of hydrogen peroxide solution in a measuring cylinder and dispense it into several clean test tubes.
2. Take a little yeast, add it to each test tube one by one with a dropper, and start the timer at the same time.
3. Immediately observe the reaction phenomenon in the test tube, record the rate of bubble formation, the amount, and the intensity and duration of the reaction.
Experimental principle
Catalase in yeast, when it encounters hydrogen peroxide, if it is locked, catalyzes its decomposition. Hydrogen peroxide then converts into water and oxygen, and the reaction formula is as follows: $2H_ {2} O_ {2}\ stackrel {catalase }{=\!=\!=} 2H_ {2} O + O_ {2}\ uparrow $. The action of the enzyme decreases the activation energy required for the reaction, making the reaction easy to occur, so the bubbles are rapid.
Experimental results and analysis
If a large number of bubbles and rapid outflow, it can be seen that the catalase activity is high and the catalytic efficiency is good. This is because the activity of the enzyme is affected by many factors, such as temperature, pH, etc. Under moderate conditions, the enzyme activity is abundant; otherwise, it is weak or even inactive. In this experiment, if the reaction environment is suitable, the enzyme and the substrate fit well, and the reaction is spontaneous.
Conclusion
This experiment shows the key function of enzymes in biochemical reactions. Catalase in yeast plays an important role in the decomposition of hydrogen peroxide. Knowing this, it can also be seen that the biochemistry of all things depends on all kinds of exquisite mechanisms. Enzymes are also essential for their centers. In the future, exploring nature and applying biochemical techniques will be of great inspiration.
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