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

Phylum coelenterata, #questioen..what is the example of outline og phylum c...

#questioen..what is the example of outline og phylum coelenterata

What effect does alcohol have on reaction time, (a) What effect does alcoho...

(a) What effect does alcohol have on reaction time? (b) What other short-term effects does alcohol have?  (c) What long-term effects can result from an exce

Determine the parathryroid hormone receptors, Which of the following serves...

Which of the following serves as an effector, or part of an effector, that functions in a negative feedback system? A. 1,25-dihydroxyvitamin D Receptors located intracellularly

What are the etiological agents of malaria, Q. What are the etiological age...

Q. What are the etiological agents of malaria? The etiological agents of malaria are protozoans of the genus Plasmodium. There are four different kinds of plasmodia that cause

Explain about riboflavin, Explain about Riboflavin Aqueous solution sh...

Explain about Riboflavin Aqueous solution shows a pronounced green-yellow fluorescence, which is maximal at a pH of about, 6-7 and disappears upon the addition of acids and al

Organic chemistry and macromolecules, identify 7 speccific ways in which yo...

identify 7 speccific ways in which you can diversify carbon-containing compounds

What are the advantages of panoramic x-ray, Advantages of Panoramic X-Ray ...

Advantages of Panoramic X-Ray  Opposing landmarks are easily identified  The vertical height of the bone initialy can be assessed  The procedure is performed with conveni

Ecological pyramids - ecosystem, Ecological Pyramids - Ecosystem The a...

Ecological Pyramids - Ecosystem The ancient Egyptians constructed elaborate tombs called pyramids. The base of the pyramid is broad and it supports the upper levels of the str

How does the federal government regulate plant-incorporated, How does the f...

How does the federal government regulate plant-incorporated protectants and ensure their safe use in foods? EPA regulates the manufacture, sale and use of pesticides, containin

Relation of water content to functions, Relation of Water Content to Functi...

Relation of Water Content to Functions If an aquatic plant appearing turgid is removed from water and left in the open, it quickly wilts. The water content of the leaves may

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