A
A-STAR
Guest
this is GCSE work
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T
tarsier
Guest
because the acid levels act differently depending on the Ph level. there is alkaline7-10 and there acid 0-7 ph level. ( something like that)
J
j y
Guest
it is because it speed the activity up when pH goes down (to more acidic) if i remember this correctly...
G
green_rose
Guest
Because it changes the shape on the enzymes and it can no longer fit in the active site and create the right reactions.
C
Chris
Guest
Depends on the enzyme; for example, enzymes in your stomach require a low (acidic) pH. When the contents of your stomach enter your duodenum (intestines), the pH is neutralized with bicarbonate from....the pancreas or something, sorry my memory is fuzzy.
So, in the end, the enzymes are usually "denatured" by a change in pH, their proteins' shapes are changed, rendering them ineffective.
So, in the end, the enzymes are usually "denatured" by a change in pH, their proteins' shapes are changed, rendering them ineffective.