Bio - Lecture 6

Bio - Lecture 6 - Enzymes - What Are They? Enzymes are...

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Sheet1 Page 1 Enzymes - What Are They? Enzymes are protein catalysts -Are not significantly changed during the reaction -Usually end in "-ase" They convert substrates (reactants) into products Enzymes are specific for the reaction(s) the catalyze The enzymes a cell contains partially determines the cell's function Enzymes contain active site(s) (places on the enzyme where the reaction takes place) -It is an exact fit that favors the substrate binding -Once the reaction occurs, the products does not bind well to the enzyme and is released There are four basic ways in which enzymes function: -THey help substrates find eachother -They correctly orient substrates -They shut out water molecules -They induce an enzyme-substrate fit Made of proteins Inhibitors: Substances that bind to enzymes and decrease their activity There are two types: -Competitive inhibitors: bind to the active site of the enzyme ->Theyse "compete" with the substrate
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This note was uploaded on 05/06/2008 for the course BIOL 121 taught by Professor Lopez during the Fall '07 term at Lansing.

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Bio - Lecture 6 - Enzymes - What Are They? Enzymes are...

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