Chapter 4

Question 1

energy for protein denaturation is

Answer 1

small, and equivalent to a few hydrogen bonds

Question 2

primary structure-there is a repeating structural pattern of

Answer 2

NCCNCC

Question 3

secondary-regularities by the main chain bonds what

Answer 3

amide hydrogen and carbonyl oxygen groups

Question 4

secondary-characterized by

Answer 4

a specific pattern of hydrogen bonding

Question 5

examples of secondary are

Answer 5

alpha helicies and beta sheets

Question 6

to represent a viable form of secondary structure, the folding pattern must

Answer 6

1) optimize the hydrogen bonding potential of the main chain groups
2) represent a favored conformation of the polypeptide chain

Question 7

configuration

Answer 7

spatial arrangement of atoms around double bonds can only by changed by breaking bonds

Question 8

conformation

Answer 8

spatial arragnement of groups that are free to assume different positions in space without breaking bonds

Question 9

rotation around what bond is restricted due to what

Answer 9

C-N bond due to the partial double bond nature of the peptide bond

Question 10

the six atoms of the peptide group are

Answer 10

planar-the oxygen of the carbonyl group and the hydrogen of the amide nitrogen are trans to each other