Proteins: Monomers and Macromolecules

exam 1, bio 219, WVU fall '26

General structure

amine, alpha carbon, R group, carboxylic acid

R group hangs off __ carbon

alpha

Proteins are assembled by the __

ribosome

Proteins are made by [ ] bonds between [ ]

peptide, amine and carboxyl groups

Acidic R-groups are __ charged

negatively

Acidic R-groups have a(n) __ group at the end

carboxyl

Aspartic acid

negative/acid

Glutamic acid

negative/acidic

Basic R-groups are __ charged

positively

Basic R-groups have a(n) __ group at the end

amine

Lysine

positive/basic

Arginine

positive/basic

Histidine

positive/basic

Uncharged polar side chains have a [ ] group at the end

carboxyl, amine, or hydroxyl

Asparagine

uncharged polar

Glutamine

uncharged polar

Serine

uncharged polar

Threonine

uncharged polar

Tyrosine

uncharged polar

Nonpolar side chains have a(n) __ group at the end

methyl

Alanine

nonpolar

Valine

nonpolar

Methionine

nonpolar

Tryptophan

nonpolar

Leucine

nonpolar

Isoleucine

nonpolar

Glycine

nonpolar

Cysteine

nonpolar

Proline

nonpolar

Phenylalanine

nonpolar