Microtubules, Biology

Assignment Help:

MICROTUBULES

  • Discovered by De Robertis and Franchi.
  • Term given by Slautterback.
  • These are hollow structures, consists of tubulin protein.
  • Each protein diamer made up of a and b monomers.
  • Diameter of microtubules = 25 nm
  • Present in centrioles, cilia, flagella, spindle fibres.
  • Absent in amoeba, prokaryotes (Blue green algae and bacteria)
  • In plant microtubules often found associated to cell wall. Possibly these transport cell wall material from Golgi body to outside of cell. During cell division these become, distinct and form spindle fibers.

Related Discussions:- Microtubules

Scintigraphy or nuclear medicine, S c inti g r ap h y ...

S c inti g r ap h y or nuclear medicine: Scintigraphy was introduced in veterinary medicine in 1970s. It is highly sensitive and can detect bone dama

Evolution of man, EVOLUTION OF MAN - Mammals evolved from primitive...

EVOLUTION OF MAN - Mammals evolved from primitive reptiles (therapsida) in Triassic period, about 210 million years ago. Mammals existed as inconspicuous group of small

The digestive system, fat digestion requires two steps, what are the steps ...

fat digestion requires two steps, what are the steps and what enzymes are use to accomplish

Example of codominance, In shorthorn cattle, the coat colours red or white ...

In shorthorn cattle, the coat colours red or white are controlled by a single pair of alleles. A calf which receives the allele for red coat from its mother and the allele for whit

Pox diseases, P o x diseases Small-pox in human beings and pox in a f...

P o x diseases Small-pox in human beings and pox in a few animal species are closely related to each other. It is shown by the fact that the vaccine for the prevention of sma

What do you understand by flagella, What do you understand by Flagella. ...

What do you understand by Flagella. A cellular hairlike locomotory structure which comprise an extension of the plasma membrane surrounding a 9+2 organization of microtubules.

Define the dietary and lifestyle modifications - obesity, Define the Dietar...

Define the Dietary and Lifestyle Modifications - Obesity? The management of obesity basically comprises the following three- pronged approach. a) Dietary modifications b)

Determine the ideal clinical conditions of teeth, The ideal clinical condit...

The ideal clinical conditions of teeth which we know already include: - the absence of pain. - less than 0.1 mm initial hori-ontal mobility under lateral forces of less than

What do you mean by neuronal repolarization, Q. In chemical terms how is th...

Q. In chemical terms how is the neuronal repolarization achieved? Repolarization is the return of the membrane probable from the action potential (+35 mV) to the resting potent

Why is the cytoplasm of sperm cells very reduced, Q. Why is the cytoplasm o...

Q. Why is the cytoplasm of sperm cells very reduced? Why do mitochondria of sperm cells concentrate in the base of the flagellum? The reduced cytoplasm of sperm cells reduces t

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