Enzymes

Key Concepts:

Terms in this set (16)

enzymes
biological cataylsts, functional proteins; their names usually end in - ase
catalyst
a substance that causes or speeds up a chemical reaction
activation energy
Energy needed to get a reaction started
substrate
- the molecule upon which an enzyme acts, the enzyme will do work on the substrate; breaking it down, fusing it together, or changing its shape
active site
Region of an enzyme into which a particular substrate fits.
products
Ending materials in a chemical reaction.
optimal pH
specific pH at which an enzyme works the fastest
optimal temperature
The temperature at which the rate of enzymatic activity will be at its peak.
denature
A change in the shape of a protein (such as an enzyme) that can be caused by changes in temperature or pH (among other things).
reactants
A starting material in a chemical reaction
lactase
breaks down milk sugar (lactose)
DNA polymerase
adds DNA nucleotides to the DNA polymer
lipase
breaks down lipids
protease
breaks down proteins
-ase
ending of most enzymes
inhibit
to prevent, restrain, stop
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