How does temperature affect an enzyme?
As with many chemical reactions, the rate of an enzyme-catalysed reaction increases as the temperature increases.
However, at high temperatures the rate decreases again because the enzyme becomes denatured and can no longer function.
As the temperature increases so does the rate of enzyme activity..
What does catalase mean?
: a red crystalline enzyme that consists of a protein complex with hematin groups and catalyzes the decomposition of hydrogen peroxide into water and oxygen.
Is a catalase reaction endothermic or exothermic?
As the decomposition reaction is exothermic, the solution is heated during the reaction producing a “cloud” of water vapor that is expelled from the flask. The identical decomposition of hydrogen peroxide is also catalyzed by the protein catalase, an enzyme found in the cells of plants and animals.
What is the reaction in which hydrogen peroxide breaks down?
Hydrogen peroxide can easily break down, or decompose, into water and oxygen by breaking up into two very reactive parts – either 2OHs or an H and HO2: If there are no other molecules to react with, the parts will form water and oxygen gas as these are more stable than the original molecule, H2O2.
What happens to liver when hydrogen peroxide is added?
In this case oxygen is generated when hydrogen peroxide breaks down into oxygen and water on contact with catalase, an enzyme found in liver. Enzymes are special protein molecules that speed up chemical reactions.
Is hydrogen peroxide and yeast endothermic or exothermic?
Oxygen can be made from hydrogen peroxide and living cells (in this case, yeast). This kind of chemical reaction is called an exothermic reaction. It gives off heat, so it feels hot.