Explain in brief about the cell membrane, Biology

Assignment Help:

Explain in brief about the Cell Membrane

All cells, whether prokaryotic or eukaryotic, are bound by a limiting membrane called the cell membrane or the plasma membrane. The cell membrane gives shape and mechanical strength to the cell and protects it from the environment. The cell membrane is composed of lipids and proteins, and in many cases about 2-5% carbohydrates are also present. These carbohydrates are linked to the proteins or lipids. In plants, the cell membrane is covered by a rigid cell wall whose major component is cellulose. In fungi, the cell wall is made of chitin. Among the various models proposed for the plasma membrane, the most satisfactory model that is generally accepted is the fluid mosaic model of S.J. Singer and G.L.  Nicolson (1972). This model satisfactorily accounts for several of the observed properties of the plasma membrane.

 


Related Discussions:- Explain in brief about the cell membrane

Fat metabolism, FAT METABOLISM Animals  digest  and utilize three main ...

FAT METABOLISM Animals  digest  and utilize three main  types  of fatty compounds or lipids  neutral or true  fats ( triglycerides ),  phospholipids  and sterols. Endproducts

What are lichens, What are lichens? How do fungi participate in this ecolog...

What are lichens? How do fungi participate in this ecological interaction? Lichens are produced by mutualist ecological interaction among fungi and algae or among fungi and cya

Types of ribosomes, TYPE S OF RIBOSOMES Ribosomes are of two types: - ...

TYPE S OF RIBOSOMES Ribosomes are of two types: - 1 . Procaryotic Ribosomes - 70 s = Occur in cytoplasm of prokaryotes, and also in mitochondria, and Chloroplast o

Explain the cladosporium - fungi and yeast, Explain the Cladosporium - Fung...

Explain the Cladosporium - Fungi and Yeast? Classification Kingdom - Mycetae Division - Amastigomycota Form - Class - Deauteromycetes Form - Order - Moniliales F

Lipids - digestion process, Lipids are essential fats that have much import...

Lipids are essential fats that have much importance to the human body. Lipids are biological molecules that are insoluble in aqueous solutions and soluble in organic solvents are c

Chorionic villus sampling (cvs), CHORIONI C VILLUS SAMPLING (CVS)  - CV...

CHORIONI C VILLUS SAMPLING (CVS)  - CVS is done during 8th-10th week of pregnancy when abortion is safe. For CVS cells are sucked into a catheter passed through the cervix.

Preparation of dilutions - standard or total plate counts, Define Preparati...

Define Preparation of Dilutions - Standard or Total Plate Counts? 1. Serial dilution of homogenized sample in an appropriate diluent. Preparation of dilutions - Decimal dilu

What do you mean by ulcerative colitis, Q. What do you mean by Ulcerative C...

Q. What do you mean by Ulcerative Colitis? Let us understand clearly about ulcerative colitis by reading the following case. Varun, a 48-year-old male, had a very successful

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd