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

Planeria, differnce between protonephridia and metanephridia

differnce between protonephridia and metanephridia

How do taenias obtain food and make gas exchange, Q. How do taenias obtain ...

Q. How do taenias obtain food and make gas exchange? The Tapeworms have sucking and hooks structures on their heads (scolex) that fixate the parasite in the gut wall these stru

Define secondary level care - public nutrition, Define Secondary level care...

Define Secondary level care - public nutrition? More complex health problems of the community are resolved at the secondary level care through the district hospitals and the Co

Define why the virginia opossum is considered a generalist, Define why the ...

Define why the Virginia opossum is considered a generalist and the koala is considered a specialist. The opossum feeds on almost anything, whereas the koala feeds only on the l

The complex nature of earthquake ground motion, In fact a real earthquake g...

In fact a real earthquake ground motion at a particular site is much more complicated that than the simple waveform depicted. It would be beneficial if we make comparison between t

Essay, Need an essay for my biology class. Need to know if you can do it. ...

Need an essay for my biology class. Need to know if you can do it. Thank you Instructions. Essay Assignment: Experimental Design Now that you have completed several hands-on la

Polyphyletic theory, Please I need short notes on polyphylrtic theory

Please I need short notes on polyphylrtic theory

Provide the definition of health care, Provide the Definition of Health Car...

Provide the Definition of Health Care? Health care involves much more than just medical care and can be defined as "multitude of services provided to individuals or communities

Explain risk evaluation, Explain Risk evaluation Risk evaluation: Th...

Explain Risk evaluation Risk evaluation: The risk evaluation involves: A) identification of a food safety problem B) Establishment of a risk profile C) Ranking of

Explain about the toxicity of pyridoxine, Explain about the Toxicity of pyr...

Explain about the Toxicity of pyridoxine? Though toxicity related to pyridoxine intake are rare, but use of high doses of pyridoxine for the treatment of pre-menstrual syndrom

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages