Chapter 3: Protein structure & Amino acids

Question 1

Nonpolar side chains are…

Answer 1

Hydrophobic: they do not interact with water

Question 2

Proteins are

Answer 2

Polymers made of monomers

Question 3

Monomers

Answer 3

Amino acids

Question 4

Peptide bond

Answer 4

A bond used by amino acids to form proteins

Question 5

Most important part of a protein?

Answer 5

Structure

Question 6

The four basic levels of protein structure

Answer 6

• Primary
• secondary
  -Tertiary
• quaternary

Question 7

Primary structure

Answer 7

Spatial relationship of adjacent amino acids

Question 8

Secondary structure

Answer 8

Spatial relationship of neighboring amino acids

Question 9

Tertiary

Answer 9

Spatial relationship of distantamino

Question 10

Quaternary

Answer 10

Spatial relationship of amino acids in separate polypeptide chains,

Question 11

Hydrolysis dehydration

Answer 11

Use’s water to breakdown polymers into monomers

Question 12

Polymers

Answer 12

A substance or material consisting of very large molecules

Question 13

Alpha

Answer 13

Helices

Question 14

Beta

Answer 14

Pleated sheets

Question 15

5 important types of R-group interactions

Answer 15

• hydrogen bonds
• hydrophobic interactions
• van her walls interactions
• covalent disulfide bonds
  -Ionic bonds

Question 16

Hydrogen bonds

Answer 16

Form between polar side chains and opposite partial

Question 17

Hydrophobic interactions

Answer 17

Water forces hydrophobic side chains together

Question 18

Van her walls interactions

Answer 18

Weak electrical interactions between hydrophobic side chains

Question 19

Ionic bonds

Answer 19

Form between groups with full and opposing charges

Question 20

Aspartate

Answer 20

One letter code: D
Abbreviation: asp
Property: ionic & acidic

Question 21

Glutamate

Answer 21

One letter code: E
Abbreviation: glu
Property: ionic & acidic

Question 22

Lysine

Answer 22

One letter code: k
Abbreviation: Lys
Property: ionic & basic

Question 23

Arginine

Answer 23

One letter code: R
Abbreviation: arg
Property: ionic & basic

Question 24

Histidine

Answer 24

One letter code: H
Abbreviation: His
Property: ionic & basic

Question 25

Serine

Answer 25

One letter code: S
Abbreviation: Ser
Property: polar

Question 26

Threonine

Answer 26

One letter code: T
Abbreviation: Thr
Property: polar

Question 27

Tyrosine

Answer 27

One letter code: Y
Abbreviation: Tyr
Property: polar

Question 28

Asparagine

Answer 28

One letter code: N
Abbreviation: Asn
Property: polar

Question 29

Glutamine

Answer 29

One letter code: Q
Abbreviation: Gln
Property: polar

Question 30

Glycine

Answer 30

One letter code: G
Abbreviation: Gly
Property: nonpolar

Question 31

Alanine

Answer 31

One letter code: A
Abbreviation: Ala
Property: nonpolar

Question 32

Valine

Answer 32

One letter code: V
Abbreviation: Val
Property: non polar

Question 33

Leucine

Answer 33

One letter code: L
Abbreviation: Leu
Property: nonpolar

Question 34

Isoleucine

Answer 34

One letter code: I
Abbreviation: Ile
Property: nonpolar

Question 35

Methionine

Answer 35

One letter code: M
Abbreviation: Met
Property: nonpolar

Question 36

Cysteine

Answer 36

One letter code: C
Abbreviation: Cys
Property: nonpolar

Question 37

Phenylalanine

Answer 37

One letter code: F
Abbreviation: Phe
Property: nonpolar

Question 38

Tryptophan

Answer 38

One letter code: W
Abbreviation: Trp
Property: nonpolar

Question 39

Proline

Answer 39

One letter code: P
Abbreviation: Pro
Property: nonpolar

Question 40

Hydrophilic

Answer 40

Form hydrogen bonds with water