Ribosomes (The protein synthesizing factory) :- (ribo from ribose or ribonucleic acid and soma means body) : Ribonucleic acids are small granular bodies involved in protein synthesis.
Structure and composition;- Ribosome composed of equal amount of ribonucleic acid and proteins. It is non membrane bounded organelle. It is composed of two units , one is small sub unit and the other is large sub unit.
Occurrence:- occurs both in prokaryotes and eukaryotes.
Function :- it is involved in protein synthesis, so called protein synthesizing factory.