ENZYME CASCADE

Discussion of all aspects of cellular structure, physiology and communication.

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bionut720
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ENZYME CASCADE

Post by bionut720 » Mon Apr 23, 2007 4:30 am

WHAT EXACTLY OCCURS DURING AN ENZYME CASCADE?

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kotoreru
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Post by kotoreru » Mon Apr 23, 2007 12:05 pm

An enzyme activates another, which in turn activates another, which in turn...

(VERY basically)
"What are humans if they don't learn at University? Animals, yes."

^^One of my ex-girlfriends said that. I stress the ex part.

bionut720
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Post by bionut720 » Mon Apr 23, 2007 2:20 pm

and how does the first one activate?

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kotoreru
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Post by kotoreru » Mon Apr 23, 2007 2:26 pm

Ah well I suppose I should have expected such a question considering the simplicity of my answer lol

Ok well think of blood clotting. The coagulation cascade...the start trigger is tissue damage (or plasma contact with air). I'm a bit hazy on the particulars, but fibrin and fibrinogen come to mind...

Try this: http://en.wikipedia.org/wiki/Coagulation
"What are humans if they don't learn at University? Animals, yes."

^^One of my ex-girlfriends said that. I stress the ex part.

bionut720
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Post by bionut720 » Mon Apr 23, 2007 6:42 pm

thanks a lot, that really helped!

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Post by Jammerz » Tue Apr 24, 2007 4:48 am

The wikipedia link covers it in great detail.

A very simple explanation we had in our bio lecture was that cells at the site of injury release clotting factors that convert prothrombin to thrombin, which in turn converts fibrinogen to fibrin, which helps platelets to form a clot.

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