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You are going to have to do a lot of reading. Try this site: http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/E/Enzymes.html. This is an important topic and you will get tested on this again and again. I suggest you read a little, and then comeback with questions on things you do not understand.
I appreciate the thought, however. broken link :3
Ok, Ill look for another one. Gimme a minute. What is your textbook?
Cambell Biology ninth edition Ap edition
I am trying to find it for you on this site. http://www.course-notes.org/Biology/Outlines
chapter 8 is about enzymes
So enzymes speed up the reaction by lowering energy barriers.
he purpose of enzymes and how enzymes function.: Many reactions occur so slowly because they have a high energy of activation. Enzymes lower that energy barrier and allow the reaction to occur.
Enzymes are very specific in their role an in the substrates (compounds) they work with. Its like a lock fits only one key.
pH: Each enzyme works best at certain optimal conditions, which favor the most active conformation for the enzyme molecule.
Temp: As temp increases, the effectiveness of the enzyme increases a little, because the reactants and products move and have higher energy. Then if the temp incs more, the enzyme will fall apart because it is a protein itself.
Hope that helps.
Enzymes speed up both the forward and reverse reactions equally, but they do not change the equilibrium between reactants and products. This means that introducing enzymes into a chemical reaction will reduce the time it takes for the reaction to reach equilibrium BUT the enzyme does not necessarily push the reaction in one direction or the other. The equilibrium is determined by the thermodynamic energy states of reactants and products. The transition state energies when converting from reactants to products (or reverse) are what determine the speed of the reaction. Enzymes reduce these transition state energy barriers.
Thats very good dspieg. You are right on. Go read your book HazeEzah. This is important stuff.
Thanks a lot Guys!