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Cell Biology C

Posted: September 6th, 2014, 2:43 pm
by watermydoing14
First Question: Why are the amphipathic characteristics of phospholipids vital to the structure of the bilayer of cell membranes?

Re: Cell Biology C

Posted: September 6th, 2014, 5:54 pm
by cena
Because the lipid bilayer becomes impermeable to polar molecules or solutes, but it can allows for the diffusion of hydrophobic molecules?

Re: Cell Biology C

Posted: September 6th, 2014, 10:13 pm
by watermydoing14
Correct! Your turn

Re: Cell Biology C

Posted: September 7th, 2014, 5:39 pm
by cena
Describe the function of the peroxisome and name the organ that uses peroxisomes to detoxify the body of harmful substances.

Re: Cell Biology C

Posted: September 8th, 2014, 5:04 pm
by alwaysmatts
function of peroxisome: convert H2O2 into something useful(or not harmful) to the body?? i believe the formula is 2H2O2---> 2H2O and O2?

and the organ that uses it is the liver

Re: Cell Biology C

Posted: September 8th, 2014, 5:32 pm
by cena
That's right! Your turn :)

Re: Cell Biology C

Posted: September 8th, 2014, 6:51 pm
by alwaysmatts
list 2 differences between alpha and beta structures of glucose

Re: Cell Biology C

Posted: September 8th, 2014, 8:11 pm
by bernard
Don't forget to hide your answers!

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Re: Cell Biology C

Posted: September 13th, 2014, 5:04 pm
by 09821qh
1. Alpha structures have a cis configuration between the OH and the CH2OH group, while beta structures have a trans configuration between the two groups?
2. I don't know any other structural differences but molecules of alpha structured glucose link up to form starch whereas molecules of beta structured glucose makes up cellulose.

Re: Cell Biology C

Posted: September 18th, 2014, 2:32 pm
by alwaysmatts
the first reason is correct!!

The second one im looking for is that alpha glucose is largely helical while beta glucose is straight and unbranched.

kk ur turn!