Types of endoplasmic reticulum, Biology

Assignment Help:

TYPES

E.R. consists of two types -        1. Rough E.R.                2. Smooth E.R.

 

Rough E.R.

 

Smooth E.R.

 

80s ribosomes bind by their larger subunit with the help of two glycoprotein which occur on surface of Rough E.R. i.e. Ribophorin I and II

More stable

Composed of cisternae and vesicles Abundantly occurs in cells which are actively engaged in protein synthesis e.g. liver, pancreas, Goblet cells.

 

Ribosomes and Ribophorins absent

 

 

 

 

Less stable

Composed of tubules.

Abundantly occur in cells concerned with glycogen and Lipid metabolism. e.g. Adipose tissue, Interstitial

cells, Muscles, Glycogen storing liver

cells, and adrenal cortex

Maximum number of Rough E.R. present in cells of (according to priority) -

(1) Fibroblast (whose function is fibre or protein synthesis)

(2) Plasma cell (whose function is to form antibodies which consists of protein)

(3) Pancreatic cell (form enzymes consists of proteins)

Maximum number of Smooth E.R. present in cell of (according to priority) -

(1) Interstitial cells (Leyding cells) - found in testis - functions is to secrete testosterone (male hormone, steroid nature) consists of lipids.

(2) Cells of adrenal cortex - synthesis steroid hormones. (3) Muscle fibre - glycogen (carbohydrate) synthesis.


Related Discussions:- Types of endoplasmic reticulum

Cannulation-procedures of oxygenators, Cannulation :  Typically blood is d...

Cannulation :  Typically blood is drained by gravity through two cannulae inserted into the superior and inferior vena cavae. During bypass, if the SVC and IVC are snared, the ent

International support to control hpai and other tads, International support...

International support to control HPAI and other TADs In 2008, a new global approach called "One World, One Health" was defined by the four international technical agencies, i.e

Find the net charge of the predominant form asp, Determine the net charge o...

Determine the net charge of the predominant form Asp at (a) pH 1.0, (b) pH 3.0, (c) pH 6.0, and (d) pH 11.0?

Why overwatering a potted tomato plant will kill it, Consistently overwater...

Consistently overwatering a potted tomato pla nt will eventually kill it. Using the map, suggest why waterlogged soil results in plant death. O2 cannot reach respiring root cells.

Find the genotypes and phenotypes of the f1, Determine the genotypes and ph...

Determine the genotypes and phenotypes of the F1 generation from a colour blind father and a mother who is homozygous for normal colour vision.

The initial velocity of an enzyme catalyzed reaction, The initial velocit...

The initial velocity of  an  enzyme catalyzed reaction The mathematical relationship between  the initial velocity of  an  enzyme catalyzed reaction, the concentration of the s

Phylum protozoa, hints for preparing for college assignment any outline

hints for preparing for college assignment any outline

Explain tuberculosis, Tuberculosis Tuberculosis is a chronic infectious...

Tuberculosis Tuberculosis is a chronic infectious disease which is caused by a bacterium - Mycobacterium tuberculosis.  It affects the lungs most commonly but call gel localize

Why in the f1 generation is one of the colors missing?, Considering the hyb...

Considering the hybridization in a trait like the color of the flowers of a given plant species (red/yellow) conditioned by a pair of different alleles in relation to complete domi

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

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