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

Describe how potassium is essential, How potassium is essential for the fol...

How potassium is essential for the following physiological functions It is vital for photosynthesis. When K + ion is deficient, photosynthesis declines and respiration incr

Determine the term -stolon, Determine the term -Stolon. In a number of ...

Determine the term -Stolon. In a number of colonial cnidarians, ascidians, and lophophorans, a cord of tissue connects different zooids of colony to each other. Buds on stolon

Determine the atp-sensitive potassium channel, ATP-sensitive potassium chan...

ATP-sensitive potassium channel A. The channel is a spanning protein with a receptor site for ATP located on an intracellular region of the protein. B. When blood plasma lev

What are the main bryophyte groups, Q. What are the main bryophyte groups? ...

Q. What are the main bryophyte groups? The major bryophyte groups are the mosses, the hornworts and the liverworts.

How a volcanic eruption removes all plant life, A volcanic eruption removes...

A volcanic eruption removes all plant life from a valley below the volcano Explain why succession following the eruption is likely to happen more quickly on the valley floor than o

Explain the term indirect calorimetry, Explain the term Indirect Calorimetr...

Explain the term Indirect Calorimetry? This method estimates energy expenditure by determining the oxygen consumption and carbon dioxide production of the body or a cell over a

What are the major plant tissues, What are the major plant tissues that for...

What are the major plant tissues that form the rings observed on stem sections of some trees? The rings observed on a stem cross section of the dicot trees are made of conducti

Contact guidance - modes of cell movement, Contact guidance - Modes of Cell...

Contact guidance - Modes of Cell Movement Besides chemical / ionic factors that regulate cell movement in developing embryos, physical factors as well appear to play a role in

Rheumatic heart disease, Rheumatic heart disease was the predisposing cardi...

Rheumatic heart disease was the predisposing cardiac lesion for IE in 20 to 25 per cent. In patients with rheumatic heart disease, endocarditis occurs most frequently on the mitral

Mode of nutrition, illustrate the mode of nutrition in parrot

illustrate the mode of nutrition in parrot

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