TYPES OF RIBOSOMES
Ribosomes are of two types:-
1. Procaryotic Ribosomes -
70 s = Occur in cytoplasm of prokaryotes, and also in mitochondria, and Chloroplast of eukaryotes
2. Eukaryotic Ribosomes -
80 s = Occur in cytoplasm of eukaryotic cells.
(i) A-site - Acceptor site for t-RNA
(ii) P-site - site for growing polypeptide chain