What are the centrioles, Biology

Assignment Help:

Q. Into which periods is mitosis has divided?

Mitosis is divided into four periods: metaphase, prophase, telophase and anaphase.

Q. What are the centrioles and in which type of cell are they present?

Centrioles are tiny cylindrical structures made of nine microtubule triplets they appear in pairs in the cell. Centrioles participate in the making of cytoskeleton and of flagella and cilia. In cell division they play a vital role in the formation of the aster fibers.

Centrioles are structures present in the animal cells, in some primitive and in most protists fungi. There are no centrioles in cells of superior plants and generally it is considered that plant cells do not have centrioles although this is not completely correct since some plants have centriole-containing cells.

The region where the centrioles are located is term as the centrosome of the cell.


Related Discussions:- What are the centrioles

Define recommended dietary allowance for pyridoxine (rda), Define Recommend...

Define Recommended Dietary Allowance for pyridoxine (RDA)? Average requirements for pyridoxine vary with age, sex and physiological conditions such as protein status, pregnan

What is resective therapy, Resective therapy Is used to reduce pockets,...

Resective therapy Is used to reduce pockets, correct negative osseous architecture and rough implant surfaces and increase the area of keratinized gingival if needed. Apical

What is the type of digestion that occurs in cnidarians, What is the type o...

What is the type of digestion that occurs in cnidarians? These animals have a digestive cavity and they make intracellular and extracellular digestion. The extracellular digest

Explain the protection of erythrocytes and cell membrane, Explain the Prote...

Explain the Protection of erythrocytes and cell membrane? Protection of erythrocytes: Vitamin E protects erythrocytes from haemolysis by the production of oxidizing agents

Explain an open circulatory system, Why, even though they have an open circ...

Why, even though they have an open circulatory system, can flying insects like flies beat their wings with great speed? In insects the circulatory system is open but this syste

Explain radiation sterilization, Explain radiation sterilization Variou...

Explain radiation sterilization Various studies have been conducted which show the effect of processing on vitamins especially, thiamine. In one study, which compared the effec

Show estrogen level and the lh level in the menstrual cycle, Q. What is the...

Q. What is the relationship between the estrogen level and the LH level in the menstrual cycle? What is the function of LH in the menstrual cycle and when does its blood concentrat

Why is maternal milk important for the immune protection, Why is maternal m...

Why is maternal milk important for the immune protection of the baby? Besides being nutritionally significant, maternal milk participates in the defense of the baby against inf

Define the advatages of potassium, Define the advatages of Potassium Th...

Define the advatages of Potassium The gross impact of these effects on crop production is manifested  in several ways. Perhaps the first visible indication of a potassium defic

Quick transient responses - behaviour of plants, Quick transient responses ...

Quick transient responses - Behaviour of Plants Such responses are stimulated by factors showing significant variations over relatively small time period e.g., those showing w

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