Determine about the microtubules, Biology

Assignment Help:

Determine about the microtubules

The microtubules are hollow tubular structures formed by a special arrangement of two proteins called the alpha and beta tubulins. The microtubules play a leading role during cell division. At that time the chromosomes attached to the mitotic spindle, composed of microtubular fibres, move apart due to contractions of the microtubule proteins. The motility of eukaryotic cells, the movement of flagella and cilia, the movement of the microvilli of the intestinal brush border cells, are all associated with microtubules. The movement of leukocytes in the blood stream and the transport of molecules along the axonal fibres are also due to contractions of the proteins constituting the microtubules. The cytoskeleton is, thus, an important structured feature of the cell, which is essential for the various kinds of movements associated with the cell and its internal structures. This is achieved by the special proteins that constitute the cytoskeleton, by a process of polymerisation and depolymerisation, resulting in changes in shape and thus resulting in movement.

 

 


Related Discussions:- Determine about the microtubules

Explain about the anti obesity drugs, Explain about the Anti Obesity Drugs?...

Explain about the Anti Obesity Drugs? The anti-obesity drugs can be classified into two broad groups as indicated in the Figure. Drugs must be taken only under Doctor's

Describe nerve cells, In eukaryotes possibly the most rapid and complex sig...

In eukaryotes possibly the most rapid and complex signaling is mediated through nerve impulses.  The Nerve  cells  (neurons)  consist  of  a cell  body  with  numerous projections

Determine nutritional requirements for space missions, Determine Nutritiona...

Determine Nutritional Requirements for Space Missions? Space exploration represents a new frontier in the nutritional sciences and humans are eating in space since Cosmonaut Yu

Provide evidence to explain the conversion, Provide supporting evidence to ...

Provide supporting evidence to explain how conversion of a normal somatic cell into a malignant one requires multiple mutations.

Telophase of karyokinesis, - The chromosomes at each pole uncoil and elonga...

- The chromosomes at each pole uncoil and elongate to form the chromatin. - A nucleolus reappears at each pole. - Spindle fibers and asters disappear and centrioles split. - A nu

What is a phenotype, What is a phenotype? A phenotype is each observabl...

What is a phenotype? A phenotype is each observable characteristic of a living being conditioned by its genes. Some phenotypes may be changed by nongenetic factors (for instanc

What are allosteric enzymes, Allosteric enzymes are those that have more ac...

Allosteric enzymes are those that have more activation center and to which other substances known as allosteric regulators bind. Allosteric regulators can be allosteric inhibito

Diseases or genetic abnormalities caused by dominant genes, What are some d...

What are some diseases or genetic abnormalities caused by dominant genes? Why are severe dominant genetic diseases rarer than recessive ones? Instance of dominant genetic disea

Acid rain, what are the two main pollutants that contribute to acid rain

what are the two main pollutants that contribute to acid rain

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