Chapter 2 Flashcards

Front

Name this type of molecule

Back

Amino acid

Front

Name this type of molecule

Back

Polypeptide or Protein

Front

Three functional groups present in an amino acid

Back

Amino group (NH2), carboxyl group (COOH), and R group (variable side chain)

Front

Name of the bond formed when two amino acids join together

Back

Peptide bond

Front

Four levels of hierarchical structure of protein

Back

Primary, secondary, tertiary, and quaternary

Front

Outline of the first level of protein structure

Back

Primary structure: sequence of amino acids in a polypeptide chain

Front

Outline of the second level of protein structure and three examples

Back

Secondary structure: local folding into structures like alpha helices, beta pleated sheets, and random coils

Front

Part of the protein that stabilizes/causes the secondary structure

Back

Bonds between molecules in the amino-carboxyl backbone of the polypeptide.

Front

Outline of the third level of protein structure

Back

Tertiary structure: three-dimensional shape formed by entire polypeptide chain

Front

Part of the protein that stabilizes/causes the tertiary structure

Back

Interactions between R groups.

(includes hydrogen bonds, ionic bonds, and disulfide bridges)