Quiz 7a Flashcards Preview

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Flashcards in Quiz 7a Deck (46)
1

a typical cell has almost a dozen different proteins

false

2

salt bridges are actually ionic bonds

true

3

a disulfide bond is the strongest of the side chain interactions

true

4

hair permanents involve destroying and then creating new disulfide bonds

true

5

in sickle cell anemia the hemoglobin molecule is not a sphere like normal hemoglobin

true

6

in electrophoresis using a buffer with pH 6.0 aspartic acid would move to the + electrode

true

7

most amino acids found in nature are L amino acids

false

8

anti-diuretic will reduce the amount of water excreted

true

9

the peripheral proteins in cell membrane are used to make protein channels

false

10

an accidental replacement of one wrong amino acid in the primary structure of a protein can cause major physiological changes

true

11

how many different tetra peptides can be formed from
tyrosine, alanine, and valine

81

3x3x3x3

12

which level of protein structure does NOT involve hydrogen bonding

primary

13

which amino acids would be found only on the INSIDE of a globular protein

amino acids with non-polar side chains

14

which is the smallest
enzyme, vasopressin, glucagon, immunoglobulins

vasopressin

15

which is the largest
typical enzyme, oxytocin, insulin, immunoglobulin

immunoglobulin

16

hydrogen bonding of the "O" in the amide and the "H" from the nitrogen backbone

2

17

B sheets

2

18

disulfide bonding

3

19

salt bridges

3

20

amino acid sequencing

1

21

more than one polypeptide chain linked together

4

22

hydrophobic interaction

3

23

charge on glutamic acid at 6.0 pH

-1

24

charge on glutamic acid at
pH 13

-2

25

charge on glutamic acid at
pH 3.2

0

26

glutamine and lysine

hydrogen bonding

27

isoleucine

proline

hydrophobic interaction

28

cysteine
cystein

disulfide bonds

29

glutamine

arginine

hydrogen boding

30

an ionic interaction

salt bridges

31

arginine
glutamic acid

salt bridge

32

serine

tyrosine

hydrogen bonding

33

contains an actual covalent bond

disulfide bonds

34

polypeptide used to induce labor and lactation

oxytocin

35

what protein is found in HDL and LDL

serum globulins

36

protein used to store oxygen in heart muscles (humans) and marine mammal muscles

myoglobin

37

lipid in egg yolk

lecithin

38

protein in egg whites

albumin (egg)
ovalbumin

39

carbohydrate in milk

lactose

40

protein in milk

casein

41

polypeptide that promote water retention

vasopressin

42

the protein used to transport fatty acids

serum albumins

43

the steroid hormone that promotes water retention

aldosterone

44

the polypeptide involved in the "bonding" of mother and newborn

oxytocin

45

what protein is used to store iron in the spleen

ferritin

46

other name for antibodies

immunoglobulins