NURSING ANM AND GNM

NURSING EXAM QUESTIONS

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Examples of amino acids with polar chains without charge.
A
Cysteine
B
Serine
C
Tyrosine
D
All the anteriors
Explanation: 

Detailed explanation-1: -The non-polar amino acids include: alanine, cysteine, glycine, isoleucine, leucine, methionine, phenylalanine, proline, tryptophan, tyrosine and valine. The polar amino acids include: arginine, asparagine, aspartic acid (or aspartate), glutamine, glutamic acid (or glutamate), histidine, lysine, serine, and threonine.

Detailed explanation-2: -Hint :A polar molecule is one that’s neutral, or uncharged, but has an asymmetric internal distribution of charge, leading to partially positive and partially negative regions. Generally speaking, water is good at dissolving ions and polar molecules, but poor at dissolving nonpolar molecules.

There is 1 question to complete.