Question

Explain the statement that Lipid are hydrophobic and hydrophylic how does this Support the function of the cell membrane When you look under the microscope how determine examine a Prokoryotic or Eukaryotic cell?

Answer 1

Answer:

Lipid:" They are water insoluble compounds, i.e waxes and steroids. Due to the fact they have long hydrphobic chains which make them unable to dissolve in water solvents."

• As the lipid molecules are structured by glycerol molecules linked with the long carbon chains and the bonding occurs in two basic forms,as saturated(alkanes) and in unsaturated (alekenes, alkynes)form of lipids or fatty acids.

Explanation:

• Cell membrane composition:

Structure of Phospholipid and Sterols:

• The cell membrane is mainly composed of two types of lipids, the phospholipids and the sterols, which helps making the lipid bi-layer for the cell. There are two portion of the lipid structure, the hydrophobic tail, and the hydrophilic head. This is property is called as “amphiphilic” property of the phospholipids, as it helps the molecule during the composition of cell membrane structure.

• While the Sterols (cholosterol) have the ring like structure, in which there is a  lipid-soluble region, along with having a hydroxyl group portion which is the water-soluble region in the molecule.

Function inside the cell membrane:

Liposomes carry out the function of being the structural unit for composing the structure of the cell membrane. Liposomes are globular structure which are formed when the phospholipids or its mixture is immersed in water solvents. The lipid bilayer is observed inside the cells membrane under the microscope, which are basically the liposomes. As they are seen as concentric lipid bilayer bodies inside the cell membrane.

Mechanism:

As the concentric layers has two parts the water soluble and water insoluble portion. The hydrophilic part of the molecule is attracted towards the water solvent, while the hydrophobic part remain inside. As the two parts make a circular structure, while on the center of the fatty acid molecules are remained.