a protein must be correctly folded to be functional

Question 1

the sequence of amino acids in a polypeptide is known as what structure?

Answer 1

primary structure

Question 2

this structure is created by the regional folding of the polypeptide into 3 dimensional patterns

Answer 2

secondary structure

Question 3

this structure is formed by the interactions of distantly placed segments of the polypeptide chain

Answer 3

tertiary structure

Question 4

primary structure

Answer 4

a chain of covalently bonded amino acids forms the most basic, or primary, structure of a protein

Question 5

secondary structure

Answer 5

hydrogen bonding can locally organize the polypeptide chain into helical and pleated secondary structures

Question 6

tertiary structure

Answer 6

additional folding, stabilized by long-distance interactions, pulls the secondary structure into a compact 3-dimensional shape

Question 7

certain proteins have what, created by what?

Answer 7

a quaternary structure, created by interaction of another polypeptide chain

Question 8

what is denaturation? what does it result in?

Answer 8

destruction of a protein’s 3-dimensional shape, resulting in a loss of protein activity

Question 9

what can cause denaturation of proteins?

Answer 9

extreme temperatures, pH, and salt concentration

Question 10

quaternary structure

Answer 10

some proteins consist of 2 or more polypeptide subunits