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

What are the benefits of cardiac rehabilitation, What are the benefits of c...

What are the benefits of cardiac rehabilitation ? The most substantial benefits include: 1 Improvement in exercise tolerance. 2 Improvement in symptoms. 3 Improvement in blood

Acute heart failure, Ac ute heart failure The acute heart failure is c...

Ac ute heart failure The acute heart failure is characterized by sudden loss of consciousness and falling with or without convulsions. The mucous membranes become pale followe

Define subphylum chelicerata, Define Subphylum Chelicerata - classes Arachi...

Define Subphylum Chelicerata - classes Arachinda AM merostomata? The subphylum Chelicerata includes familiar horse shoe crab, spiders, scorpions, ticks and mites. 1. Body consis

Genetics, What does skin color in man shows?

What does skin color in man shows?

Explain operation for patients with high pvr, Explain Operation for Patient...

Explain Operation for Patients with High Pulmonary Vascular Resistance ? When the pulmonary vascular resistance is very high (6-8 units/m2) closure of ASD is done either with

Chronic exposure of cadmium, Q. Chronic exposure of Cadmium? An increa...

Q. Chronic exposure of Cadmium? An increase in the soil cadmium content due to soil pollution by industrial wastes, burning of coal, fossil fuels, sewage sludge, medical and

State in brief about the soil horizon, State in brief about the soil horizo...

State in brief about the soil horizon A  soil horizon may be defined as "a horizontal layer of regolith, approximately parallel to the soil surface, and possessing relatively

Viral diseases, How do measles and HIV virus affects the bodies organisms

How do measles and HIV virus affects the bodies organisms

Duodenum participating in extracellular digestion, Q. Besides the liver whi...

Q. Besides the liver which is the other adnexal gland of the digestive system that releases substances in the duodenum participating in extracellular digestion? The other adnex

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