Ribosomes build proteins
Why?
Ribosomes are tiny machines that join amino acids together to build proteins.
A ribosome slides along a strand of instructions, clicking coloured beads together into a long chain that folds into a protein.
Press the button to watch a ribosome read instructions and build a protein chain.
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Thousands of ribosomes in a hair root cell work at once, building the keratin protein that makes hair.
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