Cell Biology C

[watermydoing14]

First Question: Why are the amphipathic characteristics of phospholipids vital to the structure of the bilayer of cell membranes?

[cena]

Because the lipid bilayer becomes impermeable to polar molecules or solutes, but it can allows for the diffusion of hydrophobic molecules?

[watermydoing14]

Correct! Your turn

[cena]

Describe the function of the peroxisome and name the organ that uses peroxisomes to detoxify the body of harmful substances.

[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

[cena]

That's right! Your turn

[alwaysmatts]

list 2 differences between alpha and beta structures of glucose

[bernard]

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[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.

[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!