EXAM 1 Flashcards

1
Q
A

D. Asp

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2
Q
A

B

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3
Q
A

D. Asp

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4
Q
A

B. His

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5
Q
A

D. Polar Neutral

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6
Q
A

B. Acidic

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7
Q
A

C. Tyr

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8
Q
A

C. T N Y

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9
Q
A

B. +1

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10
Q
A

D. Cys

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11
Q
A

E. W, Y, F

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12
Q
A

E. W

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13
Q
A

C. Glu

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14
Q
A

E. His

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15
Q
A

E. L & W

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16
Q
A

B. b

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17
Q
A

C. A pentapeptide with 4 peptide bonds

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18
Q
A

E. 5

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19
Q
A

B. -1

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20
Q
A

E. +2

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21
Q
A
22
Q
A

A. a

23
Q
A

C. 5

18/3.6=5

24
Q
A

C. It is not stabilized by the H-bonds

25
Q
A

A. Alpha helix

26
Q
A

D. An anitparallel Beta sheet

27
Q
A

C. Parallel beta sheets are more stable than anti-parallel ones

28
Q
A

C. The protein’s amino acid sequence (primary structure)

29
Q
A

B. Disulfide bond

30
Q
A

E. Hydrophobic interactions

31
Q
A

B. The tendency of non-polar molecules to avoid interaction with water and thus aggregate

32
Q
A

C. Leu; Ser

33
Q
A

C. Glu (-) - Asn - Ser - Thr - Arg (+)

34
Q
A

C. E (glutamate)

35
Q
A

B. His; H-bond

Ser is polar nuetral

36
Q

What is the abbreviated form of hemoglobin?

A

alpha2beta2

37
Q

What are the 3 most commonly used types of chromatography?

A
  1. Ion-exchange chromatography
  2. Gel-filtration chromatography
  3. Affinity chromatography
38
Q
A

D. Gel-filtration chromatography

39
Q
A

E. All of the above

40
Q
A

B. Largest

41
Q
A

B. Size

42
Q
A

E. Lysozyme, hemoglobin, TPI

43
Q
A

D. Hemoglobin, TPI, myoglobin, lysozyme

44
Q
A

B. Methane because no electronegative atoms and nonpolar

45
Q
A

A

46
Q
A

B

47
Q
A

C

48
Q
A

E

49
Q
A

INCORRECT
C. Nucleic acids are polymers of nucleosides
CORRECT
Nucleic acids are polymers of nucleotides

50
Q
A

C. Uracil but not thymine

51
Q
A

A. Phosphodiester

52
Q
A

INCORRECT

C. Amino acids have one unique triplet code or codon