Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Ribosomes: are minute nonmembranous and dense spheroidal particles or granules. First observed by electron microscopy by palade 1955. Being only about 200 to 250 a in diameter these are smallest, but most abundant of all cytoplasmic organelles. Every cell contains several thousands to millions of ribosomes. Most of these are linked at the surface of endoplasmic reticulum many are free in the cytosol, and some are found in the in the nucleus and mitochondria also in chloroplasts of plant cells.
Structurally. Each ribosome has two parts a proximal larger subunit linked to the endoplasmic are composed of RNA and proteins approximately in equal amounts. The ribosomal RNA ( rRNA) has only four macromolecules . Three in the larger subunit and one the smaller subnuits. Considerable portion of these RNA molecules secondarily become double stranded due to intermolecular the intermolecular base pairing so that the molecules become 3 dimensional .The ribosomal protein include 73 macromolecules 40 in large in 33 in small subunits .
Ribosomal subunits are assembled from their component r RNA and protein molecules in the nucleolus of nucleus. These are of the four r RNA molecules are synthesized in the nucleolus . The fourth is synthesized by some chromosome outside the nucleolus. This and the 73 protein molecules synthesized in the cytoplasm migrate to the nucleolus for being incorporated in ribosomal subunits. The latter diffuse out into the cytoplasm and assemble to form ribosome's most of which link the endoplasmic reticulum.
Explain about the Lignans? Lignans are diphenolic compounds formed by dilnerization of 2 cinnamic acid residues. Most lignans apparently pass through the GIT as fibre. Some lig
Explain transports of substances or materials in the membrane by the help of Lipid-anchored proteins with examles
Acute Bronchitis: Acute bronchitis is inflammation of one or more bronchi and occurs specifically in children younger than four year?. It is usually associated with previ
Rare Species - Wildlife These are those species whose numbers are few or they live in such small areas or in such unusual environments (endemics), that they could quickly disa
Why can the allantois be considered an adaptation to terrestrial life? The allantois is an adaptation to dry land because in embryos of oviparous terrestrial beings, like repti
Q. For non-insulin users consumption of Alcohol? 1. Substitute for fat calories. A drink providing 100 calories should be substituted by 2 fat exchanges. . 2. Avoid if your
P r o d u c t Quality Assurance Meat products should be manufactured under strict hygiene and sanitary conditions to avoid public health risks and improve aesthetic appea
Psychology : This is the study of human mind. On other words Psychology is the science of behavior or mental processes. Its immediate aim is to understand the individuals or groups
An element playing significant role in nitrogen fixation is : 1. Molybdenum 2. Copper 3. Manganese 4. Zinc An element playing significant role in nitrogen fixation
What is Genetic Recombination and Evolution ? Variation among the offspring of living organisms results from genetic recombination through sexual reproduction and mutation. Va
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd