What are differentiations of the cell membrane, Biology

Assignment Help:

In some types of cells, the cell membrane present differentiations that are essential for the specific functions of the cells. The major differentiations are the microvilli and the structures for reinforcement of adhesion or union among cells (cell junctions).

Microvilli are multiple external projections of the membrane resembling glove fingers. This differentiation is found in cells of tissues where it is advantageous to enhance the size of the surface in contact with the exterior, for example, in the enteric (intestinal) epithelium for absorption of nutrients.

Membrane differentiations for reinforcement of adhesion among cells happen mainly in epithelial tissues where the require for coverage and impermeability requires cells to be "glued" to neighbouring cells. These differentiations can be interdigitations, desmosomes, tight junctions (zonula occludens), zonula adherens (adherens junctions) and gap junctions.


Related Discussions:- What are differentiations of the cell membrane

What are coacervates, What are coacervates? Coarcervates are small stru...

What are coacervates? Coarcervates are small structures made of the aggregation of organic molecules under water solution. By electrical attraction the molecules join into bigg

State the number of nuclear dna molecules, For each of the following stages...

For each of the following stages, state the number of nuclear DNA molecules in one of your cells (i.e., 23,46, or...) and its ploidy (i.e.,n, 2n, or...). 1.) Prophase of mitosis

Classification of wastes, Wastes are classified into following categories: ...

Wastes are classified into following categories: 1.      Biodegradable wastes: The waste materials that can be degraded by micro-organisms are called biodegradable wastes. Th

Explain about precautionary principle, Q. Explain about precautionary princ...

Q. Explain about precautionary principle? The ethical values of biodiversity highlights the intrinsic value of biodiversity for its own sake and it is independent of the varied

Define the symptoms in blood of pernicious anaemia, Define the Symptoms in ...

Define the Symptoms in Blood of Pernicious Anaemia? Blood: The RBC count is low-1.5-2.5 million per mm 3 (normal range is 4.5- 5.5 million per mm 3 ). The average diameter o

Synapse, SYNAPSE - The point where 2 neurons combine is synapse. It ...

SYNAPSE - The point where 2 neurons combine is synapse. It is of 2 types - (i) Axosomic (between axon & cyton) (ii) Axodendric (between axon & dendron) Axon is term

Assignment of botany, habitat, habit, cell wall chemistry, reason why cell ...

habitat, habit, cell wall chemistry, reason why cell wall like this of Archaebacteria , eubacteria,fungi,algae,bryophytes ,pteridophyes, gymnosperms , angiosperms..

Difficulty of establishing collaborations - infuse biology, Explain the Dif...

Explain the Difficulty of establishing and sustaining collaborations? Working with another is both rewarding and challenging. Working across disciplines is even more so. Though

Embryology, what is the fertilization?

what is the fertilization?

State about osteogenesis, State about osteogenesis Embryologically, ost...

State about osteogenesis Embryologically, osteogenesis may be classified as either intramembranous or endochondral. When the ossification occurs directly, it is defined as intr

Write Your Message!

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