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posted by  E.G.K on 10/2/2008 7:36:10 PM  |  status: Live  

BIOLOGY

Course Textbook Chapter Problem
N/A N/A 2 10
Question Details:
What happens to an allosteric enyme when the conentration of substrate around the molecule increases?
 
(a) It becomes essentially non-functional
(b) It increases it's processing capacity
(c) The substrate binding sites become inaccessible
(d) It becomes less senitive to the action of single molecules
Tags: Biology
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Sage
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posted by Red Raiders on 10/2/2008 8:54:51 PM  |  status: Live
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Response Details:
(a) It becomes essentially non-functional
(b) It increases it's processing capacity
(c) The substrate binding sites become inaccessible
(d) It becomes less senitive to the action of single molecules
s
Mentor
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posted by suncm on 10/2/2008 9:05:06 PM  |  status: Live
Asker's Rating: Helpful   
Response Details:
(b) It increases it's processing capacity is the correct answer

This is assuming that when you say the concentration of the substrate around the molecule increases, you're talking about the enzyme. Therefore, as the substrate concentration increases, the enzyme activity will increase, thus making B the correct answer.

Note: This is assuming that the cooperativity is positive, not negative.
Hope this helps!
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posted by lmnop123 on 10/3/2008 12:38:51 AM  |  status: Live
Asker's Rating: Helpful   
Response Details:
b) it increases its processing capacity
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