Chapter 3.2 Vocab

Proteins

Bio macromolecule, polymers made of amino acids

Amino Acids

Monomers. Has carboxyl and amino group

R group/side chain/R

Side group that differentiates amino acids

Disfulide bridge

When 2 (—SH) groups react. Each one lose an H (—S—S—)

Oxodized

Molecule, atom, or ion losing electrons. The substance that loses electrons is oxidized.

Reduced

Molecule, atom, or ion gaining electrons. The substance that gains electrons is said to be reduced.

Oligopeptides

oligopeptides are small 5-30 amino acids long

Polypeptide

< 30 amino acids long

Peptide bond

Amino and Acid group condensation reaction

Primary structure

Protein - Exact order of amino acids in polypeptide chain

Secondary structure

Repeated pattern in dif regions of polypeptide

Alpha helix

Right handed ciol. Like wood screw (b, d)

Beta pleated sheet

2+ sequences of amino acids extended and aligned, (c,d)

Teritary structure

Polypeptide chain bent and folding back and forth

Denatured

Protein that has second and teritary structure broken down

Peptide

peptide is a chain of amino acids

Quaternary structure

Subunits binding together and interacting