Chap4.1 Primary Structure

Question 1

Primary Structure

Answer 1

linear seq of aa that make up proteins

Question 2

How many aa are in a protein?

Answer 2

50-2,000

Question 3

Secondary Structure

Answer 3

the alpha helix and B strand

the spatial arrangement of aa near eachother

Question 4

Tertiary Structure

Answer 4

The spatial arrangement of aa far from eachother

and the pattern of disulfide bonds

Question 5

How are linear polymers made?

Answer 5

Linking the alpha carboxyl group of two aa

Question 6

Another name for peptide bond?

Answer 6

Amide bond

Question 7

Peptide bond

Answer 7

Linkage joining aa

Question 8

What does the linking of two aa result in?

Answer 8

A water molecule

Question 9

Polypeptide chain

What are its ends?

Answer 9

A series of aa joined by a peptide bond
Has directionality
alpha aa group and an alpha carboxyl group

Question 10

Residue

Answer 10

each aa in a polypeptide

“what is left over”

Question 11

Convention of a polypeptide chain

Answer 11

aa>carboxyl

Question 12

What is the N terminal?

Answer 12

Start of the polychain. Alpha aa

Question 13

C terminal

Answer 13

End of chain

Carboxyl

Question 14

What does a polypeptide chain consist of?

Answer 14

backbone

variable

Question 15

Backbone

Answer 15

Reg. repeating part
Hbonding potential
C=O Hacceptor
N=H Hdonor

Question 16

What is a Hacceptor?

Answer 16

C=O carbonyl

Question 17

What is a Hdonor?

Answer 17

N-H amino group

Question 18

Oligopeptides

Answer 18

Peptides w a small # of aa