State the major function of the cell membrane, Biology

Assignment Help:

State the major function of the cell membrane

A major function of the cell membrane is to maintain the characteristic integrity of the cell by forming a selective barrier between the cell and its surroundings. It regulates the movement of various molecules into and out of the cell. For this purpose, the cell membrane is endowed with various transport processes. In general, nonpolar molecules are transported more readily across the membrane than polar or charged molecules. While some substances can diffuse by passive diffusion across the membrane (e.g. water), substances like glucose are transported by facilitated diffusion, involving specific proteins in the membrane. Most biomolecules are, however, transported into and out of the cell in an active process involving expenditure of energy.

 


Related Discussions:- State the major function of the cell membrane

What are the plant cell vacuoles, Q. What are the plant cell vacuoles? And ...

Q. What are the plant cell vacuoles? And what are their functions? And what is the covering membrane of the vacuoles called? Plant cell vacuoles are cell structures delimited b

How are the epithelial tissues classified, Q. How are the epithelial tissue...

Q. How are the epithelial tissues classified? The epithelial tissues are classified according to the shape of the cells that form it epithelial cells may be columnar, cuboidal,

Explain continuous murmurs and their characterstic, Explain Continuous Murm...

Explain Continuous Murmurs and their characterstic in details? These murmurs are continuous throughout systole and diastole. It is due to continuous blood flow in the same dire

Why is colour an important characteristic of food, Q. Why is colour an impo...

Q. Why is colour an important characteristic of food? Colour is an important quality attribute in food although they do not necessarily influence their nutritional, flavour or

Haemolysis-complications of prosthetic valves, Haemolysis :  Mechanical va...

Haemolysis :  Mechanical valves, bioprosthetic valves as well as valves repaired with annuloplasty rings may cause haemolysis and related anaemia. This is more common when there i

Ecological pyramids, one disadvantage of the pyramid if a tree and grass ea...

one disadvantage of the pyramid if a tree and grass each count as one organism

Determine when the virus is in an inactive state, What is meant when it is ...

What is meant when it is said that a virus is in an inactive state? Viruses considered in inactive state are those whose genetic material is within host cells without synthesis

Species diversity, Species Diversity Species diversity means the differe...

Species Diversity Species diversity means the differences between species (both domesticate d and wild). It is the most visible component of biodiversity as implied by the word

Types of cleavage, Types of Cleavage a) Radial Type : If each of the ...

Types of Cleavage a) Radial Type : If each of the blastomeres of upper tier lies exactly over the corresponding blastomeres of the lower tier the pattern of cleavage is radia

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