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Posted by Simon on Mon, 29 Dec 2008 15:50
Location: Manchester, United Kingdom Posts: 29 | Moderator Use this post to ask questions about the "Enzymes" notes of Unit 1 Section 3-1-2.
Posted by Toxicsox on Wed, 27 May 2009 23:40
Location: Unknown Posts: 0 | Junior Member what happens to enzymes at 50°C are they inactivated, or denatured?
Rating: Posted by Simon on Wed, 27 May 2009 23:44
Location: Manchester, United Kingdom Posts: 29 | Moderator Above 50°C, enzymes are denatured as the high temperature causes the hydrogen bonds to vibrate. At those temperatures, the vibrations are so strong causing the bonds to break and it is not possible for them to reform. Therefore, they are denatured. Cold temperature inactivates the enzyme as the bonds are not broken. Hope this helps!
Changed by admin on Wed, 27 May 2009 23:47 Rating: Posted by fafa on Fri, 16 Oct 2009 02:40
Location: Unknown Posts: 6 | Junior Member im doing a essay on Effect of Temperature on Amylase Activity
i want to find out about how dark is the colour when maltose produced has ny1 done this essay and if so what are the limitations? what affects the rate and why ? thx xx Posted by StephR on Mon, 28 Dec 2009 20:33
Location: Unknown Posts: 5 | Junior Member enzyme's have an optimum temperature they work at. In humans our optimun temp for the ezymes is 40c therefore our body temp is 37 c which allow our enzymes some 'lee way' for when we have a temperature or heat stroke. Posted by Fr00be on Thu, 07 Jan 2010 11:42
Location: Milton Keynes, United Kingdom Posts: 1 | Junior Member actually different enzymes in different things have a different optimum temperature. some enzymes love 80 degrees. not all enzymes denature at 50 degrees Posted by possy1491 on Mon, 11 Jan 2010 20:42
Location: Dalton-in-Furness, United Kingdom Posts: 1 | Junior Member hi is there anything you could add about competitive inhibition and non-competitive?
thnks Posted by StephR on Fri, 15 Jan 2010 20:32
Location: Unknown Posts: 5 | Junior Member competitive inhibitors compete for the active site of the enzyme. They have a similar molecula configuation and prevent the substrate entering the active the site. E.g. malonate Non-competitive inhibitors do not compete for the active site but bind themselves else where on the enzyme changing the shape of the active site therefore preventing the substrate form binding to the sctive site. E.g potassium cyanide Changed by StephR on 15 Jan 2010 20:41 Posted by fafa on Sat, 16 Jan 2010 01:29
Location: Unknown Posts: 6 | Junior Member thx for help xx Posted by Curtis on Mon, 08 Feb 2010 20:14
Location: United Kingdom Posts: 2 | Junior Member Dont really want to ask a question just want to say, thanks for the help this site is great keepm it up and see if you can add a bit more information please xx
Posted by Curtis on Mon, 08 Feb 2010 20:14
Location: United Kingdom Posts: 2 | Junior Member Dont really want to ask a question just want to say, thanks for the help this site is great keepm it up and see if you can add a bit more information please xx
Posted by frankmeng on Mon, 08 Mar 2010 14:02
Location: singapore Posts: 1 | Junior Member great info provided.. THANKS TO EVERYONE
Posted by c610weaver on Mon, 12 Apr 2010 22:57
Location: Unknown Posts: 1 | Junior Member why are enzymes important for plants and animals?? do i 1) say the stuff about digestion and photosynthesis 2) do i say about the fact they are biological catalyst and without them are bodies would not function |
