Thursday, 3 January 2013

2.10 understand how the functioning of enzymes can be affected by changes in active site caused by changes in pH

Change in PH can denature enzymes by breaking the bonds that  hold the structure in place. So the active site no longer fits with the the substrate it is meant to be breaking down. The PH at which this happens is different for different enzymes, but generally an extreme PH will denature any enzyme.
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14 comments:

  1. Unknown12 June 2013 at 14:57

    Thanks a lot for all these info , they are so helpful :)

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  2. HannahHelp13 June 2013 at 07:39

    That's ok :)

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  3. Anonymous14 July 2013 at 06:22

    THANK YOU SO MUCH! Do you have a blog for chemistry or physics? and are you taking the exams this year?

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    Replies
    1. Unknown14 June 2014 at 08:05

      yes she does just type into google "Hannah help Physics/Chemistry"

      Delete
  4. CatLover694428 December 2013 at 03:39

    Hi, would you say that all the information on this blog (ie. the numbered pieces of information Edexcel give you) is all we need to get an A* in the exam? Thanks!! :)

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    Replies
    1. Unknown14 June 2014 at 08:07

      Yes it is but it is also helpful to study in detail any extra information that Edexcel give in the textbook because it can come up in some of the stretch and extend questions in paper two.

      Delete
  5. Unknown8 June 2014 at 12:26

    Cheers 4 all this v. good

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  6. Unknown17 December 2015 at 02:57

    the is mentioned twice

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  7. Chloe9 March 2016 at 18:13

    How about the ability of enzymes to degrade cellulose?

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  8. Anonymous20 October 2016 at 08:07

    what is the normal pH for the enzymes and the boundaries between the enzymes becoming denatures

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  9. Anonymous20 October 2016 at 08:09

    what is the normal pH for the enzymes and the boundaries between the enzymes becoming denatures

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    Replies
    1. Unknown15 April 2017 at 02:25

      i think it varies depending on where the enzymes are e.g.) in the stomach, enzymes work best in pH 2 whereas in the intestine they work best at pH 7.5 or so I read.

      Delete
  10. Mike Tsang26 June 2017 at 02:37

    The Biology Syllabus has changed.... New Syllabus Blog:

    http://igcse-biology-2017.blogspot.hk

    ReplyDelete
  11. SophieRice26 June 2017 at 07:35

    more at

    http://igcse-biology-notes.blogspot.hk/2017/06/210-understand-how-functioning-of.html

    ReplyDelete

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