There are three main components of food: proteins are one of them.
She runs down the road, but by the front entrance there are protesting teenagers (proteins) and she doesn’t want to go past them.
Proteins and Amino Acids
Proteins consist of long chains of amino acids.
Di Chest sees a farmer with his tractor and trailer full of seeds who finds his way to work blocked – he is a mean old seed farmer (amino acid). Di Chest decides to use an alternative route.