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Biology 13 Online
OpenStudy (friendzone):

Cell membranes are mainly composed of two layers of ______________. Question 1 options: A) Proteins B) Phospholipids C) Glycolipids

OpenStudy (hanamalik):

a) i think, don't know for sure

OpenStudy (anonymous):

b) phospholipids. 100% sure, think of the structure of DNA: sugar phosphate backbone!

OpenStudy (hanamalik):

Oh, right. Sorry, not so good in bio

OpenStudy (anonymous):

Yes for sure B

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