Exam 2: Proteins Flashcards
What elements make up proteins?
C, H, O, N, and small amounts of other elements like S
Monomers of proteins?
Amino acids
Compound composed of 2-49 amino acids
Peptide
Compound composed of 50+ amino acids
Polypeptide
Structure of Amino Acids
Amino Group (NH2), Carboxyl Group (COOH), H, Side chain
What charge is the amino group?
+
What charge is the carboxyl group?
-
How many side chains are there?
20
Four types of side chains
Acidic, basic, uncharged polar (hydrophilic), nonpolar (hydrophobic)
If the side chain has a negative charge
Acidic
If the side chain has a positive charge
Basic
If the side chain has an oxygen
Uncharged polar (hydrophilic)
Which amino acid only has a hydrogen for its side chain
Glycine
Which amino acid is ringed
Proline
Which amino acid has a sulfhydryl group
Cysteine