EXAM 1 Flashcards by serena beirold

Q

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D. Asp

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B

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D. Asp

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B. His

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D. Polar Neutral

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B. Acidic

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C. Tyr

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C. T N Y

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B. +1

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D. Cys

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E. W, Y, F

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E. W

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C. Glu

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E. His

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E. L & W

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B. b

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C. A pentapeptide with 4 peptide bonds

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E. 5

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B. -1

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E. +2

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Q

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Q

A

A. a

Q

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C. 5

18/3.6=5

Q

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C. It is not stabilized by the H-bonds

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A. Alpha helix

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D. An anitparallel Beta sheet

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

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

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B. Disulfide bond

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E. Hydrophobic interactions

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

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C. Leu; Ser

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

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C. E (glutamate)

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B. His; H-bond

Ser is polar nuetral

Q

What is the abbreviated form of hemoglobin?

A

alpha2beta2

Q

What are the 3 most commonly used types of chromatography?

A

Ion-exchange chromatography
Gel-filtration chromatography
Affinity chromatography

Q

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D. Gel-filtration chromatography

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E. All of the above

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B. Largest

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B. Size

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E. Lysozyme, hemoglobin, TPI

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D. Hemoglobin, TPI, myoglobin, lysozyme

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B. Methane because no electronegative atoms and nonpolar

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A

Q

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B

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C

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E

Q

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

Q

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C. Uracil but not thymine

Q

A

A. Phosphodiester

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INCORRECT

C. Amino acids have one unique triplet code or codon