Structure and Function of Hydrophilic Channel

Running head: CELL BIOLOGY
CELL BIOLOGY
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CELL BIOLOGY1
Structure and Function of Phospholipid:
A phospholipid molecule is consists of a polar head and a non-polar tail. Polar head is
hydrophilic and contains glycerol molecule and phosphate group. Non-polar tail have two
uncharged and hydrophobic fatty acid chains.
Phospholipids provide rigid barrier to cells against water and other extracellular fluids
and maintains cellular structure.
Structure and Function of Glycoprotein:
Glycoproteins are the proteins in which the glycosylated chains are attached with the
amino acid chains.
In immune system, the glycoproteins bind with lectin molecules. In the epithelial cells,
they help in protecting the cells. Another type of glycoproteins known as cadherin and they help
in gluing different cells together.
Structure and Function of Cholesterol:
The bulky structure of the cholesterol involves four hydrocarbon rings fused together
with the smaller hydrocarbon chains attached to it.
The molecule is the main steroid in the body, which helps in hormone production and
also present in the cell membrane and is an abundant component of the lipid raft.
Structure and Function of Hydrophilic Channel:
A hydrophilic channel is a protein molecule that consists of a specific arrangement of
amino acids so that it is incorporated within a membrane.