Flashcards- Ch 5 Part III Proteins/ Enzymes

Front

PROTEINS

Back

Consist of one or more polypeptide chains folded and coiled into specific conformations (3D shapes).

Front

Polypeptide chains

Back

Polymers of amino acids arranged in a specific linear sequence determined by DNA nucleotide sequence.

Front

Peptide bonds

Back

Covalent bonds that link amino acids in polypeptide chains.

Front

Length of polypeptide chains

Back

Range from a few amino acids to over 1000.

Front

Functions of proteins

Back

Proteins have several functions: structural support, signaling, movement, transport, response, defense, and catalysis of reactions (enzymes).

Front

monomer of protein

Back

Amino acids

Front

number of different amino acids

Back

There are 20 different amino acids

Front

label parts of amino acid

Back

- Amino group - Carboxyl group - Alpha carbon - Alpha hydrogen atom - Variable R group (side chain)

Front

Functional groups used in condensation reaction (aka dehydration synthesis reaction) between amino acids.

Back

Peptide bonds link the carboxyl group of one amino acid to the amino group of another amino acid.

Front

How does the theme of structure and function relate to proteins?

Back

A protein’s function depends on its specific conformation (3-D shape).