The lipid bilayer forms the basic structure of the plasma membrane with proteins

Question

The lipid bilayer forms the basic structure of the plasma membrane with proteins floating within the lipid bilayer. The principle of complementarity of structure and function explains that structure (anatomy) and function (physiology) are always interrelated (see text p 3). The structure of an organelle or cell or tissue or organ has the design to accomplish the function of that organelle or cell or tissue or organ.

Consider the plasma membrane; Discuss how the structure of the phospholipids in the plasma membrane is related to the function of the plasma membrane.

Then discuss how the structure of the peripheral proteins is related to their functions in the plasma membrane.

Explanation / Answer

Ans

How is structure of phospholipid in plasma membrane is related to its function:

Phospholipids form bilayer of plasma membrane it consists of two part Head, which is at outside of cell so directly contact with extracellular fluid while tell, part that is hydrophobic which mingle within plasma membrane which is hydrophobic? due to this part transportation of lipophilic substance is allowed inside while hydrophilic substances is prevented.

How structure of peripheral proteins is related to function in plasma membrane:

These protein present in peripheral part of plasma membrane also known as extrinsic protein does not interact with hydrophobic part of plasma membrane so also act as a cell recognition.

These protein are regulatory molecule for ionic channel and some transmembrane receptor.

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