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

Power plants of the aerobic cells, Why can mitochondria be considered the p...

Why can mitochondria be considered the power plants of the aerobic cells? Ans) Mitochondria are the "power plants" of aerobic cells due to within them the final stages of the ce

Explain the taxonomic concepts, Q. Explain the taxonomic concepts? The ...

Q. Explain the taxonomic concepts? The history of classification is an exciting aspect of plant taxonomy. The discovery of the use of plants for food and later as medicine bega

Soil pollution, Soil is upper crust of earth which support land plants and ...

Soil is upper crust of earth which support land plants and animals. It is defined as addition of substances to the soil, which adversely affect physical, chemical? And biologica

Human eye, Who first discovered eye anatomy?

Who first discovered eye anatomy?

Unit membrane model, Unit Membrane Model Lamellar model was supported ...

Unit Membrane Model Lamellar model was supported by Robertson. According to Robertson - All biomembrane have similar structure (like PM), on the basis of this observati

Other agro-industrial byproducts, Other agro-industrial byproducts Sup...

Other agro-industrial byproducts Supply of nutrients in the livestock ration can be maintained by using the locally available industrial byproducts, which in spite of having h

Can you describe about hematosis, Q. What is hematosis? In humans where doe...

Q. What is hematosis? In humans where does hematosis occur? Hematosis is the oxygenation of the blood, venous blood (oxygen-poor) after hematosis is transformed into arterial b

Neurofilaments and microtubules - nervous system, Normal 0 fals...

Normal 0 false false false EN-IN X-NONE X-NONE

Rationale for infection control, Q. Rationale for infection control? Th...

Q. Rationale for infection control? The answer lies in the fact that many infectious diseases may be transmitted during dental care. Source of potential infection that exists i

Reproductive mechanisms, Normal 0 false false false EN-...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

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