Catalase

Biology Coursework

Title: Catalase: The effect of temperature on Beef liver and Potato catalase action.
Research: All enzymes ar proteins, meaning that they be polymers of amino acids. Their tertiary structure gives them a globular make due to the stick to posit in the molecule. Many types of bonds kibosh the structure together and in the right shape. They strongest of these are the di-sulphide bridge between two cysteine amino acids. Also present are hydrogen bonds, although singly week when many are present the bond is strong. In addition are hydrophobic non-polar R-groups which by pointing to the middle of the molecule act as a bonding force.
Catalase, like all enzymes, is a biological catalyst. Catalase is an enzyme that speeds up the partition of hydrogen peroxide into water (H2O) and oxygen gas (O2).

2H2O2--------catalase--------------> 2H2O + O2

total heat peroxide (H2O2) is a poisonous byproduct of metabolism that bed damage cells if it is not removed.

Catalase is an example of a particularly efficient enzyme.   Catalase has one of the broad(prenominal)est turnover numbers for all known enzymes (40,000,000 molecules/second).



 This high rate shows an importance for the enzymes capability for detoxifying hydrogen peroxide and preventing the organic law of carbon dioxide bubbles in the blood

The main properties of enzymes are as follows:
They in the main work very rapidly
They are not destroyed by the reaction which they catalyse.
They can work in either direction
They are inactivated by high temperatures.
They are sensitive to pH
They are commonly specific to particular reactions

It is affected by the following factors:

pH The precise three-dimensional molecular shape which is vital to the mathematical operation of enzymes is partly the result of hydrogen bonding. These bonds may be embarrassed by the concentration of hydrogen ions (H+) present. pH is a pace of hydrogen ion concentration. It is measured on a scale of 1-14, with pH 7 being the neutral point....If you want to get a full essay, order it on our website: Orderessay



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