What is the enzyme in the liver enzyme lab?
enzyme catalase
Liver and other living tissues contain the enzyme catalase. This enzyme breaks down hydrogen peroxide, which is a harmful by-product of the process of cellular respiration if it builds up in concentration in the cells.
What is the independent variable in the liver enzyme lab?
The independent variable is the concentration of enzyme, the concentration of the substrate, the temperature, and the addition of an inhibitor.
Why does liver bubble when hydrogen peroxide is added?
Catalase is an enzyme in the liver that breaks down harmful hydrogen peroxide into oxygen and water. When this reaction occurs, oxygen gas bubbles escape and create foam.
What happens when you combine hydrogen peroxide with liver?
When blended liver is exposed to hydrogen peroxide, the catalase enzyme in the liver reacts with the hydrogen peroxide to form oxygen gas, which creates the visible bubbles in this photograph, and water.
How do enzymes work in the liver?
Liver enzymes are proteins that speed up chemical reactions in your body. These chemical reactions include producing bile and substances that help your blood clot, breaking down food and toxins, and fighting infection. Common liver enzymes include: Alkaline phosphatase (ALP).
What is the substrate in the enzyme lab?
The reactants of enzyme catalyzed reactions are called substrates. The active site of an enzyme recognizes, confines, and orients the substrate in a particular direction. Enzymes are substrate specific, meaning that they catalyze only specific reactions.
Why does liver react faster than potato?
The liver contains more of the enzyme catalase, which breaks down hydrogen peroxide. A larger amount of catalase lowers the activation energy, therefore speeds up the rate of reaction. The potato contains less of the enzyme catalase, therefore requires more activation energy, slowing down the rate of reaction.
