00:01
This question asks us to identify characteristics of amino acids we looked at in a previous question.
00:07
So to start, we're supposed to label these amino acids as either polar or non -polar.
00:13
So starting with methyanine, methyan introduces sulfur group on a chain relatively far away from our amino acid.
00:21
Because of this, sulfur is relatively electronegative.
00:24
So this does introduce polarity to the molecule.
00:27
So we can go ahead and label this as polar, as we have our polar side.
00:31
Chain, which our side chain would have a dipole, kind of like that.
00:38
And so looking at our next one, alanine just has a methyl group, and methyl being a hydrocarbon is non -polar.
00:45
So we can go ahead and label that non -polar.
00:50
Isolucine similarly is a hydrocarbon, and it's larger, so it's also non -polar.
01:01
And then phenylalanine finally is a benzene ring.
01:05
So our aromatic ring is also a hydrocarbon, so it's labeled as non -polar as well...