Amino Acids

Positively charged at neutral pH

• Histidine

• Proline

• Cysteine

• Tryptophan

Has a ring structure directly attaching the R group to the alpha amino group

• Glycine

• Proline

• Alanine

• Serine

The smallest amino acid with no chiral center

• Cysteine

• Alanine

• Glycine

• Serine

Hydrophilic and contained a hydroxyl in side chain.

• Lysine

• Cysteine

• Isoleucine

• Serine

Amino acid that contain two chiral (four different groups attached to a carbon) centers

• Isoleucine

• Phenylalanine

• Tryptophan

• Histidine

Absorbs UV light at wavelength 280 nm

• Histidine

• Tryptophan

• Lysine

• Cysteine

Tags

NGSS.HS-PS4-3

Contains a methyl group as side chain

• Histidine

• Glycine

• Alanine

• Proline

Sulfur in R group can forms disulfide bonds.

• Isoleucine

• Methionine

• Serine

• Cysteine

Amino Acids are all unique doe to their...

• Attached 'R-Group'

• Attached 'A - Group'

• Attached 'P - Group'

The image shows the amino methionine. Which category does it likely belong?

• Non-Polar

• Uncharged Polar

• Positively Charged

• Negatively Charged

• Non Polar Aromatic

Tags

NGSS.HS-LS1-6