3.10 Proteins

What do Alanine, Glycine, Isoleucine, Leucine, Proline, and Valine have in common?

• They are all carbohydrates.

• They are all amino acids.

• They are all nucleotides.

• They are all lipids.

Proteins are polymers of which type of molecules?

• Nucleotides

• Amino acids

• Carbohydrates

• Lipids

What functional groups do amino acids contain?

• Hydroxyl group and methyl group

• Carboxyl group and amino group

• Phosphate group and hydroxyl group

• Sulfhydryl group and carbonyl group

Amino acids have which of the following properties?

• Only acidic properties

• Only basic properties

• Both acidic and basic properties

• Neither acidic nor basic properties

What process do amino acids undergo to form protein chains?

• Hydrolysis

• Condensation

• Oxidation

• Reduction

What are the amide groups within proteins also known as?

• Glycosidic bonds

• Ester links

• Peptide links

• Hydrogen bonds

What is the biological function of a protein a consequence of?

• Its molecular weight

• Its spatial arrangement

• Its color

• Its solubility

What are the monomers that react to form proteins called?

• Nucleotides

• Amino acids

• Fatty acids

• Monosaccharides

What is the side chain in an amino acid represented by?

• H

• N

• R

• O

What is the role of the unique side chains in amino acids?

• They determine the overall polarity of the amino acids.

• They determine the molecular weight of the amino acids.

• They determine the color of the amino acids.

• They determine the solubility of the amino acids.