enzymes
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what are enzymes
protein catalysts that speed up chemical reaction, don’t create chemical reaction. they do this by lowering the activation energy without getting USED up
what terms are used to describe the enzyme process
the substrate, the enzyme and the active site - where the substrate binds
what is the lock and key method with enzymes
the active site of an enzyme is often a surface groove that perfectly fits the substrate. the match exactly and no change is necessary from either the enzyme or the substrate
what is the induced fir model theory with enzymes
enzymes alter their shape slightly so that it can fit with the substrate, the active site continues to change until the substrate is completely bound to it. its still specific
what are the two types of enzyme-substrate bounding
• lock and key method 2. induced fit model theory
what do enzymes do to the energy of a reaction
the lower the activation energy
what is a denatured enzyme
when the active site of an enzyme is altered to the point where it can no longer attach to the substrate, it is said to be denatured
what does a denatured enzyme cause
it cannot catalyse a reaction and the alteration of the 3D structure of the protein can cause by changes in temperature and ph of the enzymes environment. once an enzyme is denatured it cannot be restored