1- Amino acids are not
zwitterions
monomers of polypeptides  
proteins
chiral

2- 
The amino acid above is:
lysine
arginine
asparagine
glutamate

3- All naturally-occurring standard amino acids are always
chiral
D-enantiomers
L-enantiomers
nonpolar

4- Highly hydrophobic amino acid
phenylalanine
aspartate
glutamine
alanine

5- Highly hydrophilic amino acid
serine
valine
isoleucine
glutamate

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Answers:

1- Amino acids are not
Answer: proteins

2- 
The amino acid above is:
Answer: arginine

3- All naturally-occurring standard amino acids are always
Answer: L-enantiomers

4- Highly hydrophobic amino acid
Answer: phenylalanine

5- Highly hydrophilic amino acid
Answer:glutamate