--%>
Assignment Help - homework help

Basic constituents of cell membrane

Write down the basic constituents of cell membrane.

E

Expert

Verified

The cell membrane is formed of the lipids, carbohydrates and proteins. The membrane lipids are phospholipids, a special kinds of lipid to which one fringe a phosphate group is bound thus allocating electrical charge to this region of molecule. Since phospholipids enfold one electrically charged extremity and the long neutral organic chain they can organize themselves into two layers of allocated molecules: the hydrophilic portion (polar) of each and every layer faces outwards in contact with the water (or polar molecule too) of extracellular and the intra-cellular space and hydrophobic chains (or non polar) face inwards inaccessible from the water. Because this kind of membrane is made of two phospholipids layers it is as well named as bilipid membrane.

Membrane proteins are entrenched and dispersed in compact bilipid structure. Carbohydrates appear in outer surface of membrane allocated to some of those proteins under the form of glycoproteins or bound to the phospholipids forming glycolipids. The membrane carbohydrates structure the glycocalix of membrane.

This description (with further explanations) is recognized as the fluid mosaic model regarding the structure of cell membrane.

   Related Questions in Biology

  • Q : Define American trypanosomiasis

    American trypanosomiasis: It is commonly known as Chagas disease, caused by Trypanosoma cruzi, is a parasite, found mostly in blood sucking triatomine insects. The organism T cruzi and infection in humans were first introduced in 1909

    		•
  • Q : Main differences of vertebrate nervous

    Write down some main differences of vertebrate nervous systems comparing to invertebrates?

    		•
  • Q : Define the term parathyroids Define the

    Define the term parathyroids? Where are they situated and name the hormones secreted by such glands?

    		•
  • Q : State Public Relations Public Relations

    Public Relations: These are the practice of managing the flow of information among a particular or an organization and the public. It may comprise an organization or particular gaining exposure to their audiences by using section of public interest an

    		•
  • Q : Classes in which phylum Echinodermata

    Write down the classes in which phylum Echinodermata is divided?

    		•
  • Q : Describe the group of the phylum

    Describe the group of the phylum Chordata which first colonized the terrestrial atmosphere? From which habitat did phylum Chordata come?

    		•
  • Q : Number of chambers does the bird and

    Determine the number of chambers does the bird heart and the mammalian heart consists of? Regarding temperature maintenance what is the benefit of the double and complete circulation of such animals?

    		•
  • Q : Chemical reaction-breaking of

    Which kind of chemical reaction is the breaking of macromolecules into smaller ones which takes place in digestion? Describe the enzymes which contribute in this process termed?

    		•
  • Q : Endosperm of gymnosperms-endosperm of

    How different are endosperm of gymnosperms and the endosperm of angiosperms?

    		•
  • Q : Function of gastrin in the digestive

    How gastrin is produced and what is the main function of gastrin in the digestive procedure? Answer: The existence of food in the stomach stimulates the secretion of

    		•