Qualification > Sciences

CHEM AND BIO HELP AND TIPS HERE

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Raywin:

--- Quote from: aangel42 on June 07, 2010, 04:11:11 pm ---That's what I was thinking at first too, but that's not tricky, lol, so maybe that's not right.
Raywin, maybe you should PM the guy who posted them or something, that way he'll get an alert and send you the answers? lol

--- End quote ---

He was a guest, i dont think hell be there.. :'(

:D

mdwael:

--- Quote from: aangel42 on June 07, 2010, 04:07:28 pm ---Two samples of a human enzyme were used in an experiment. Before they were used
           • sample X was heated to 80 C and then cooled to 37 C
           • sample Y was cooled to 0 C and then heated to 37 C.
How will this affect their activity?

A Sample X and sample Y are no longer active.
B Sample X and sample Y will be equally active.
C Sample X will be more active than sample Y.
D Sample Y will be more active than sample X.

Answer, please, and why?

--- End quote ---


Answer is D ofcourse cuz x was heated to 80 degrees so it got denatured, Y jkst got cooled, that doesnt damage it it just makes it temporarly inactive and when its heated to 37 degrees it becomes active

Vin:

--- Quote from: aangel42 on June 07, 2010, 04:11:11 pm ---That's what I was thinking at first too, but that's not tricky, lol, so maybe that's not right.
Raywin, maybe you should PM the guy who posted them or something, that way he'll get an alert and send you the answers? lol

--- End quote ---

So what it ain't tricky.. Vasoconstriction is the decrease in diameter right? So y not straight forward A BOTH DECREASE ..?

Raywin:

--- Quote from: ~VIN1094~ on June 07, 2010, 04:13:35 pm ---So what it ain't tricky.. Vasoconstriction is the decrease in diameter right? So y not straight forward A BOTH DECREASE ..?

--- End quote ---

Hmmm, yeah i guess.. :/ i have neva craved this much for a MS.. :P

Raywin:

--- Quote from: Raywin on June 07, 2010, 04:00:52 pm ---More Tricky :'(

--- End quote ---

This plz anyone.. :)

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