Ribosomes, Biology

Assignment Help:

Ribosomes -

  1. It is also known as Protein factory, Engine of the cell.
  2. Ribosomes are smallest cell organelles (150 x 250 Å).
  3. Unit membrane less cell organelle.
  4. Ribosome can be seen only through electron microscope. i.e. after electron microscopes invention, ribosomes were discovered.
  5. Having negative charge due to presence of phosphate group (H3PO43-).
  6. Claude first observed them and called Microsome.
  7. Palade coined the term Ribosome.
  8. In plants Robinson and Brown first observed them in bean roots.
  9. Except mammalian RBC all living cells have ribosomes.
  10. Proteins in ribosomes are negatively charged.
  11. Casperson and schultze, Brown and Gurdon - find out that r-RNA is synthesized in Nucleolus. Nucleolus is termed as Ribosome factory.
  12. Ribosomes are universal cell organelle, present in all prokaryotes and eukaryotes.


Related Discussions:- Ribosomes

Respiration in scorpion or spider, RESPIR A TIO N IN SCORPION OR SPIDER ...

RESPIR A TIO N IN SCORPION OR SPIDER - Respiratory organs are book lungs. A book lung is a chamber containing a series of thin, vascular, parallel lamellae arranged li

Nutrition management goals for oesophagitis, Q. Nutrition Management Goals ...

Q. Nutrition Management Goals for oesophagitis? The objectives of nutritional care include the following: 1. Prevention of irritation of the inflamed oesophageal mucosa (in

Why heartwood differs from sapwood, Heartwood differs from sapwood in: 1...

Heartwood differs from sapwood in: 1. Presence of rays and fibres 2. Absence of vessels and parenchyma 3. Having dead and non-conducting elements 4. Being susceptible t

Molecular biology on which dna fingerprint is based, What is the fact of Mo...

What is the fact of Molecular Biology on which DNA fingerprint is based? The DNA fingerprint, the method of individual identification using DNA, is based on the fact that the D

Functions of insulin, FUNCTION S - (a) It is antagonistic to glucagon....

FUNCTION S - (a) It is antagonistic to glucagon. Insulin decreases the level of glucose in the blood. It acts by increasing the rate at which glucose is transported out of the

List the exact sizes of the fragments of digests, (1)  The 7,893 bp plasmid...

(1)  The 7,893 bp plasmid shown below was digested with a series of restriction enzymes (P = PstI, B = BamHI, S = SalI, X = XbaI). Answer the questions below.  a) Indicate

Cleavage of fructose-1, Cleavage of fructose-1,6-bisphosphate Aldolase...

Cleavage of fructose-1,6-bisphosphate Aldolase cleaves  fructose-1, 6-bisphosphate to dihydroxyacetone phosphate and glyceraldehyde-3-phosphate in the reversible reaction.

Explain the irradiation and its implication, Explain the Irradiation and it...

Explain the Irradiation and its Implication The issues are the decreased salivary flow, liability for infection because of the decreased blood supply and the possibility of ost

Assortment, Assortment is a method in which the meiosis produces new combi...

Assortment is a method in which the meiosis produces new combinations of the genetic information. The paternal and maternal chromosomes line up randomly during the process of syna

What volume of 1.20 m naoh solution must we add, You have 875 mL of a 0.37 ...

You have 875 mL of a 0.37 M acetic acid solution. What volume (V) of 1.20 M NaOH solution must you add in order to prepare an acetate buffer of pH = 4.36? (The pKa of acetic acid i

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