Amino Acid Classes

The bond that joins amino acids are called:

• Peptide Bonds
• Ester Bonds
• Glycosidic Linkages
• Phosphodiester Bonds

If a methyl group (-CH₃), which does not like water, were at the 'R', the amino acid would likely be:

• Hydrophobic

• Hydrophilic

• Ionic

• Acidic

The diagram shows a bond forming between two amino acids. What is the name of this reaction?

• Condensation

• Hydrolysis

• Pepysis

• Oxidation

Amino acids all have the same general structure except for the:

• Amino Group
• Carboxyl Group
• 'R' Group
• Carbonyl Group

The primary sequence of a protein refers to the:

• Order of amino acids
• α-Helix or β-Pleated Sheet
• Interaction of subunits
• Hydrogen Bonding

Structures like an α-Helix are formed because of:

• Hydrophobic Interactions
• DiSulphide Bridges
• Salt Bridges
• Hydrogen Bonding

The structure of proteins can be changed by environmental factors such as temperature or pH.

• True
• False

The four polypeptides that join together to make a hemoglobin protein represent which level of organization?

• primary structure

• secondary structure

• tertiary structure

• quaternary structure

Which amino acid is aromatic?

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Which amino acid (s) is aliphatic?

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