Quiz 7a Flashcards

LACKS isolectric pH conversion and structure

1
Q

a typical cell has almost a dozen different proteins

A

false

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2
Q

salt bridges are actually ionic bonds

A

true

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3
Q

a disulfide bond is the strongest of the side chain interactions

A

true

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4
Q

hair permanents involve destroying and then creating new disulfide bonds

A

true

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5
Q

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

A

true

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6
Q

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

A

true

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7
Q

most amino acids found in nature are L amino acids

A

false

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8
Q

anti-diuretic will reduce the amount of water excreted

A

true

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9
Q

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

A

false

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10
Q

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

A

true

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11
Q

how many different tetra peptides can be formed from

tyrosine, alanine, and valine

A

81

3x3x3x3

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12
Q

which level of protein structure does NOT involve hydrogen bonding

A

primary

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13
Q

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

A

amino acids with non-polar side chains

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14
Q

which is the smallest

enzyme, vasopressin, glucagon, immunoglobulins

A

vasopressin

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15
Q

which is the largest

typical enzyme, oxytocin, insulin, immunoglobulin

A

immunoglobulin

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16
Q

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

A

2

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17
Q

B sheets

A

2

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18
Q

disulfide bonding

A

3

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19
Q

salt bridges

A

3

20
Q

amino acid sequencing

A

1

21
Q

more than one polypeptide chain linked together

A

4

22
Q

hydrophobic interaction

A

3

23
Q

charge on glutamic acid at 6.0 pH

A

-1

24
Q

charge on glutamic acid at

pH 13

A

-2

25
Q

charge on glutamic acid at

pH 3.2

A

0

26
Q

glutamine and lysine

A

hydrogen bonding

27
Q

isoleucine

proline

A

hydrophobic interaction

28
Q

cysteine

cystein

A

disulfide bonds

29
Q

glutamine

arginine

A

hydrogen boding

30
Q

an ionic interaction

A

salt bridges

31
Q

arginine

glutamic acid

A

salt bridge

32
Q

serine

tyrosine

A

hydrogen bonding

33
Q

contains an actual covalent bond

A

disulfide bonds

34
Q

polypeptide used to induce labor and lactation

A

oxytocin

35
Q

what protein is found in HDL and LDL

A

serum globulins

36
Q

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

A

myoglobin

37
Q

lipid in egg yolk

A

lecithin

38
Q

protein in egg whites

A

albumin (egg)

ovalbumin

39
Q

carbohydrate in milk

A

lactose

40
Q

protein in milk

A

casein

41
Q

polypeptide that promote water retention

A

vasopressin

42
Q

the protein used to transport fatty acids

A

serum albumins

43
Q

the steroid hormone that promotes water retention

A

aldosterone

44
Q

the polypeptide involved in the “bonding” of mother and newborn

A

oxytocin

45
Q

what protein is used to store iron in the spleen

A

ferritin

46
Q

other name for antibodies

A

immunoglobulins