Cell coat and its functions, Biology

Assignment Help:

CELL COAT (GLYCOCALYX)

Present in Protists and animal cells.
Usually made of oligosaccharide side chains of glycolipids and glycoproteins.
Cell coat has very charged termini as those of salicylic acid, which attract Ca2+ and Na+ ions.

FUNCTIONS

Cell coat protect the PM from mechanical injury.
It provides the shape of cell.
Functions as filter & regulate passage of solutes.
Provides recognition ability to cell, which is related to Ca2+ and Mg2+.
ABO antigens are located in terminal carbohydrate of glycocalyx of RBCs.
Antigens present in cell coat, recognized by Leucocytes & Macrophages, it is called Histocompatibility.

Related Discussions:- Cell coat and its functions

Conservation of animal genetic resources, The term farm animal genetic reso...

The term farm animal genetic resources (AnGR) is used to include all animal species, breeds and strains (and their wild relatives) that are of economic, scientific and cultural int

Restriction endonuclease, Suppose the restriction endonuclease HindIII cuts...

Suppose the restriction endonuclease HindIII cuts a6.0 kb linear piece of DNA into two fragments; an 800 bp fragment and a 5200 bp fragment..... Question: Suppose restriction

Goals of prevention of diabetes mellitus, Q. Goals of prevention of diabete...

Q. Goals of prevention of diabetes mellitus? The goals of prevention are to delay the onset of DM and preventing or delaying the cardiovascular complications. Obesity should be

Vitamin - d, VITAMIN - D Also known as Calciferol / Anti ricket vit...

VITAMIN - D Also known as Calciferol / Anti ricket vitamin / sun shine vitamin. It is necessary for bones & teeth. It is synthesized in presence of UV rays of sunl

Set up of phototherapy unit, Set Up of Phototherapy Unit Phototherapy ...

Set Up of Phototherapy Unit Phototherapy generally consists of four to eight cool white, day bright, or special blue fluroescent tube lights covered by a plastic shield and p

Explain the uses of isp in meat products, Explain the Uses of ISP in meat p...

Explain the Uses of ISP in meat products Meat products The main application of ISP in connection with meat and related products is based on the use of texturized ISP, in

Unilateral incompatibility, Unilateral Incompatibility This relates to...

Unilateral Incompatibility This relates to incompatibility that operates in one direction. The most common way to ascertain unilateral incompatibility is to perform crosses be

Blood groups, BLOO D GROUPS- In R.B.C. on plasmalemma antigen or agglu...

BLOO D GROUPS- In R.B.C. on plasmalemma antigen or agglutinogen present form antibodies or agglutinines. Blood groups are based on antigens. 1 . ABO SYSTEM -

Viruses, ae there non-parasitic viruses?

ae there non-parasitic viruses?

What is the chemical nature of carbohydrates, What is the chemical nature o...

What is the chemical nature of carbohydrates? The name carbohydrate owes its origin to the fact that most substances of this class have empirical formulae suggesting that they

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages