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.
Diarrhoea Diarrhoea refers to frequent passage of loose watery stools. Acute diarrhoea often called as acute gastroenteritis is particularly a leading cause of mortality in
Define interaction of vitamin c with Pyridoxine? Pyridoxine is involved in glyconeogenesis through its action in transaminase reactions. Low levels of pyridoxine impair glucose
Explain lyases These enzymes (code EC 4) cleave C-C, C-O, C-N and other bonds by elimination, forming double bonds or conversely adding groups to double bonds. Common names
Define in brief about the term - MRI MRI is a more recent development that was initially introduced as a rival to CT. The technique itself is complex, relying on measurement o
Determine the types of Emulsions? A food emulsion is basically a two phase system consisting of a liquid, such as oil, wax or essential oil and water. An emulsion has 3 parts -
Determine the fate of manganese which is absorbed? Let us now study the fate of Mn which is absorbed. After absorption, Mn is complexed with albumin and transported to the l
Essential Concepts of Endosseous healing 1) Osteoblast is the prime bone matrix synthesizing cell. Like most secretory cells, osteoblasts are polarized cells, and the direction
Hypothetical question. A new biotech company intends to clone the gene encoding the ABA 8-hydroylase enzyme, an important protein regulating plant hormone degradation that control
Explain the Parts of the Microscope? Microscope, as you may have noticed in Figure or for that matter even seen in a laboratory, is a metal body composed of a base and an arm t
How is the yolk sac formed? What is the function of the yolk sac? The yolk sac is formed from the covering of the vitellus by some cells originated from the primitive gut. T
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