🔵Made ofRNA + protein, in two subunits (large and small)

🧵ReadmRNA in 3-letter codons

🔗Buildchains of amino acids → proteins

🌊Free ribosomesin the cytoplasm: proteins used inside the cell

🧱Bound ribosomeson rough ER: proteins exported or put in membranes

🔢How many?millions in a busy cell; even bacteria have them