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.

14 comments:

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

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

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  3. 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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    1. 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.

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  4. How about the ability of enzymes to degrade cellulose?

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

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

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    1. 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.

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

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

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  8. more at

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

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