Why do phospholipids form a bilayer in the cell membrane

Asked by admin @ 02/08/2021 in Biology viewed by 306 People

Why do phospholipids form a bilayer in water?

a.The phosphate portions repel each other.
b.The hydrophilic and hydrophobic parts attract each other.
c.The phosphate portions attract water, and the lipid portions repel water.
d.The lipid portions attract water, and the phosphate portions repel water.

Answered by admin @ 02/08/2021

Very clear, option C is the one with which you could go.

As phospholipids are major composition of cell membrane, it posses a hydrophobic part , the lipid , as it is non-polar part it fails to dissolve in water .

At the same time, phosphate group is polar in nature it easily dissolved up water, as it result it forms the hydrophilic part.

So simply the phosphate group forms one layer ( the polar one) while another lipid group forms second layer of bilayer ( the non-polar one).

Why do phospholipids form a bilayer in the cell membrane

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