Chapter 3: Proteins

Question 1

perform many vital functions in living organisms

Answer 1

proteins

Question 2

proteins are macromolecules, polymers of ___

Answer 2

amino acid

Question 3

link amino acids into polypeptide chains

Answer 3

peptide bonds

Question 4

subunits of proteins

Answer 4

polypeptide chains

Question 5

what kind of terminal ends do polypeptide chains have?

Answer 5

N-terminal and C-terminal

Question 6

unique sequence of amino acids forming a polypeptide

Answer 6

primary structure

Question 7

produced by the twists and turns of the amino acid chain

Answer 7

secondary structure

Question 8

the folding of the amino acid chain, with its secondary structures, into the overall 3D shape of a protein

Answer 8

tertiary structure

Question 9

is formed from more than one polypeptide chain

Answer 9

quaternary structure

Question 10

amino acid chain has an irregularly folded arrangement

Answer 10

random coil

Question 11

tertiary structure gives a protein is its overall 3D shape

Answer 11

conformation

Question 12

unfolding a protein from its active conformation so that it loses its structure function

Answer 12

denaturation

Question 13

tertiary structure of most proteins is flexible, allowing them to undergo

Answer 13

conformational changes

Question 14

folding of the amino acid chain produces large subdivisions called?

Answer 14

domains

Question 15

3D arrangement of amino acid chains within and between domains produces highly specialized regions

Answer 15

motifs