B4 Enzymes Additional Science
Enzymes and basic information about them.
- Created by: mason hancock
- Created on: 08-01-13 18:10
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- B4 Enzymes
- Enzymes are Protein Molecules.
- They are known as Biological Catalysts ( they speed up chemical processes in living things).
- Enzymes are made from DNA coding.
- The name of an Enzyme usually ends in ASE.
- An Enzyme with a Substrate Molecule in an Enzymes Active Sight ( so complete) is called an Enzyme Substrate Complex.
- The part that an Enzyme takes in is called a Substrate Molecule.
- Enzymes need a specific temperature to work at their optimum.
- Enzymes also need a specific ph level to work at their optimum.
- At low temperatures, small increases in temperature cause an increase in the frequency and energy of collisions between reactants and enzymes, so the rate of reaction increases
- After the optimum enzyme activity is reached, an enzyme starts to become damaged so the reaction slows down; eventually the enzyme becomes permanently damaged; this means the enzyme is now DENATURED.
- The Lock and Key Model.
- Only a molecule with the correct shape can fit into an Enzyme.
- This is like a Key fitting into a Lock, only one Key fits the Lock.
- The process of the Lock and Key process goes as: 1) The reaction takes place. 2) The products are released. 3) The process is able to start again.
- Active Sight.
- The Active Sight is the place where the Substrate Molecule fits into the Enzyme.
- Each Enzyme has a different shape so its highly specific.
- The shape of the Active Sight can change irreversibly by extreme ph levels and high temperatures.
- An Enzyme that has an increase in temperature has an increase in Collisions.
- Enzymes are Protein Molecules.
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