ENVS 1000U Lecture Notes - Lecture 9: Amylose, Reaction Rate, Starch
25 Jan 2018
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Document Summary
Enzymes function and how they work: enzymes are catalyst, substrate binds to the active site of the enzyme and is converted into a reaction product, cofactors/coenzymes and activators help with enzyme activity. Inhibitors stop substrates from binding to their active sites. Inhibitors: either bind to the active site or bind to the enzyme somewhere else, they decrease enzyme activity. If they bind to the active site, they are usually similar in shape to the substrate: so they compete with the substrate for the active site. Inhibitors that compete with the substrate are called competitive inhibitors . If there is a higher concentration of substrate then inhibitors, it removes the inhibitor in competitive inhibitors only. If the inhibitor binds somewhere else on the enzyme then it changes the shape of the enzyme in the tertiary or quaternary structures: these are called non-competitive inhibitors.
