Chapter 3: Proteins Flashcards Preview

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Flashcards in Chapter 3: Proteins Deck (15):
1

perform many vital functions in living organisms

proteins

2

proteins are macromolecules, polymers of ___

amino acid

3

link amino acids into polypeptide chains

peptide bonds

4

subunits of proteins

polypeptide chains

5

what kind of terminal ends do polypeptide chains have?

N-terminal and C-terminal

6

unique sequence of amino acids forming a polypeptide

primary structure

7

produced by the twists and turns of the amino acid chain

secondary structure

8

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

tertiary structure

9

is formed from more than one polypeptide chain

quaternary structure

10

amino acid chain has an irregularly folded arrangement

random coil

11

tertiary structure gives a protein is its overall 3D shape

conformation

12

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

denaturation

13

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

conformational changes

14

folding of the amino acid chain produces large subdivisions called?

domains

15

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

motifs