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Feedback activation

Feedback activation

The activation of an enzyme by an end product of a biochemical pathway in which that enzyme plays a part. For example, the activation of factors VIII and v by thrombin during blood clotting.


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More general biology questions..

... Endocrine system 2. In a positive feedback system, a hormone produced can act on the gland that produced it, ... complexes form and these activate complement proteins. The activation of one kind of complement protein results in a cascade effect ...

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by freedompeace
Fri Apr 15, 2011 12:30 pm
 
Forum: Cell Biology
Topic: More general biology questions..
Replies: 1
Views: 5672

Re: Relation between 3 terms.

... when a person performs an action necessary to survival, such as eating. Activation of the reward circuit provides pleasurable feelings, giving positive feedback for necessary actions. Most abused drugs stimulate the reward system, and often provide ...

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by Spiff321
Wed Mar 18, 2009 8:51 pm
 
Forum: General Discussion
Topic: Relation between 3 terms.
Replies: 1
Views: 2277

Converting Glucose to Fat or ATP?

... the precursor of fatty acid synthesis. This is an example of feedback inhibition. * Citrate allosterically activates Acetyl-CoA Carboxylase. ... of insulin, produced when blood glucose is high, is attributed to activation of Protein Phosphatase." You need to keep in mind what the ...

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by MrMistery
Sun Dec 14, 2008 3:48 pm
 
Forum: Cell Biology
Topic: Converting Glucose to Fat or ATP?
Replies: 13
Views: 32375

HELP ME PLEASE ......!!

... in enzymatic reactions. d. all of the above e. none of the above 18. Feedback inhibition - not sure, I think D a. usually affects the last enzyme ... pathway b. is a form of competitive inhibition c. causes the energy of activation to be lowered d. usually results when the pathway product is in ...

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by BCH04
Mon Jun 18, 2007 4:15 pm
 
Forum: General Discussion
Topic: HELP ME PLEASE ......!!
Replies: 12
Views: 38561

HELP ME PLEASE ......!!

... in enzymatic reactions. d. all of the above e. none of the above 18. Feedback inhibition - not sure, I think D a. usually affects the last enzyme ... pathway b. is a form of competitive inhibition c. causes the energy of activation to be lowered d. usually results when the pathway product is in ...

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by blcr11
Mon Jun 18, 2007 1:58 pm
 
Forum: General Discussion
Topic: HELP ME PLEASE ......!!
Replies: 12
Views: 38561
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