Every cell contains many different proteins.  Most proteins are made of hundreds of amino acid molecules, each one placed precisely in the exact jigsaw puzzle position required to make it work.  Every amino acid must have at least one activating enzyme.  An enzyme is a catalyst to make a chemical reaction happen.  What does it take to do all of this?  It’s an intricate design. See this quick visual at: https://youtu.be/BKjHUpzQ8WY