How does an enzyme influence a biological reaction

This is the amino acid cysteine. circle the amine group, put a box aroundthe carboxylic acid group and use a different colored pencil/pen to circle the sidechain (r group). h o | ||nh2— c- c-oh | ch2 | sh

In general, are there any major differences that you can see? explain

Which test would show positive results for orange juice