Endoplasmic reticulum, Biology

Assignment Help:

ENDOPLASMIC RETICULUM

It is also known as Endoskeleton of the cell, Endomembranous system of the cell.

Garnier (1897) first observed them and called Ergastoplasm.

E.R. name proposed by Porter (1961).

E.R. present in all eukaryotic cells.

E.R. is a diffused cell organelle.

E.R. consists of three structure :-

(1) Cisternae - Long flattened and unbranched units arranged in stacks. 40-50 nm thick.

(2) Vesicles - 25-500 nm in diameter.

(3) Tubules - Long, isolated, branched units. 50-190 nm thick

Structure of E.R. is like the golgi body but in E.R. cisternae, vesicles and tubules are isolated in cytoplasm and these do not form complex.

Golgi body is localised cell organelle while E.R. is widespread in cytoplasm.

1080_endoplasmic reticulum.png


Related Discussions:- Endoplasmic reticulum

Genetics, what about cytoplasmic sex determination

what about cytoplasmic sex determination

What is technetium 99m sestamibi scan, Q. What is Technetium 99M Sestamibi ...

Q. What is Technetium 99M Sestamibi Scan? This study is another form of studying perfusion of the heart. This radioactive study is similar to that of thallium 201. With a combi

What is the nonhuman experimental studies, What is the Nonhuman Experimenta...

What is the Nonhuman Experimental Studies How normal brain development proceeds is essential knowledge for professionals concerned with understanding infant and young child dev

Zoology, two larva forms of sponge

two larva forms of sponge

Explain surface area of lipid oxidation, Surface area The rate of oxida...

Surface area The rate of oxidation increases in direct proportion to the surface area of the lipid exposed to air. Furthermore, as surface - volume ratio is increased; a given

Explain about the high risk pregnancies, Explain About the High Risk Pregna...

Explain About the High Risk Pregnancies? Until now we have considered the nutritional needs of pregnant women. In this sub-section, we will consider specific conditions that co

What do you mean by canning, Q. What do you mean by Canning? Canning T...

Q. What do you mean by Canning? Canning The term canning is generally applied to foods, more specifically, to the foods preserved by heat processing. It aimgto destroy microo

#allsystemsarego., hows does insulin from the pancreas reach the liver?

hows does insulin from the pancreas reach the liver?

Advantages of stage two done with tissue punch, Advantages of Stage two don...

Advantages of Stage two done with tissue punch - Less traumatic to surrounding tissue - Faster progress to the impression procedure - No sutures required

What volume of 4x protein sample buffer, What volume of 4x protein sample b...

What volume of 4x protein sample buffer do you need to add to 15 ml of a cell extract in order to load it on a gel?

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