Question

Why do cut onions bring tears? Bio mimicry product?

Answer 1

Hello...
Your answer ..

✒The synthase enzyme converts the amino acids sulfoxides of the onioninto sulfenic acid. The unstable sulfenic acid rearranges itself into syn-ropanethial-S-oxide. Syn-propanethial-S-oxide gets into the air and comes in contact with our eyes. The lachrymal glands become irritated and produces the tears!

Answer 2

In the cells of onion enzyme synthases and sulfoxide (amino acids) are present seperately. When we cut they combine and form syn- propanethials oxide which becomes sulfenic acid on combining with air. Because of this acid lacreymal glands of eyes get irritated and produce tears.

Hope this helps!!!!