(2)Ribosomes 目Structure Small electron-dense particles Two different-sized subunits ■ Free ribosome (Polyribosome)&attached ribosome Intensely basophilic 目Function Take part in protein synthesis
(2)Ribosomes (2)Ribosomes Structure Structure Small electron Small electron-dense particles dense particles Two different Two different-sized subunits sized subunits Free ribosome Free ribosome (Polyribosome Polyribosome) & attached & attached ribosome ribosome Intensely basophilic Intensely basophilic Function Function Take part in protein synthesis Take part in protein synthesis
Ribosomes large ribosomal subunit small mRNA- ribosomal hinding site subunit P-site 四骰米A A-site Aminmadeid1 proterotein
mRNA protein Amino acid 2 Ribosomes Ribosomes protein mRNA Amino acid 1
Ribosomes A Free polyribosomes,whose proteins B Bound polyribosomes,showing protein remain in the cytoplasm synthesis and segregation into the rough endoplasmic reticulum Ribosome Cisternal- membrane Segregated protein in endoplasmic reticulum mRNA Free protein in cytoplasm
Ribosomes Ribosomes
Ribosomes More polyribosomes like curves and few single free ribosomes
Ribosomes Ribosomes More polyribosomes like curves and few single free ribosomes
attached ribosomes attached ribosomes on the cytoplastic surface of endoplasmic reticulum
attached ribosomes attached ribosomes on the cytoplastic surface of endoplasmic reticulum