Ribosomes:
Ribosomes are tiny organelles composed of
RNA (specifically,
ribosomal-RNA) and protein. Messenger-RNA produced in the nucleus by copying information from DNA travels into the cytoplasm of the cell and to ribosomes, where the information it contains is used to manufacture proteins. Ribosomes are found embedded within the membranes of “rough” endoplasmic reticulum and mitochondria, but they are also scattered throughout the cytoplasm of the cell.
A ribosome, under extremely high magnification. Each
ribosome consists of two subunits called, somewhat
unimaginatively, the “large subunit” and the “small subunit.”
Ribosomes
Linear Mode
