WH1-W09_1 - M 4. (1 pt) If the side chain imidazole of...

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BCH 100, Winter 2009 WH #1 6 points LECTURES # 2-4 due January 14, 2009, 2 pm 1. (1 pt) Which of the following amino acids has a side chain that carries a negative charge in its conjugate base form? a) G b) C c) L d) N e) A 2. (1 pt) Which of the following amino acids has the most hydrophobic side chain? a) R b) Y c) A d) L e) Q 3. (1 pt) Which of the following amino acids has a side chain that can serve as BOTH a hydrogen bond donor and a hydrogen bond acceptor in its predominant form at pH 7? a) N b) V c) K d) D e)
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Unformatted text preview: M 4. (1 pt) If the side chain imidazole of histidine has a pKa of 6.0, at pH 7.0 the ratio of uncharged to charged imidazole would be about a) 1:100 b) 1:10 c) 1:1 d) 10:1 e) 100:1 5. (1 pt) The peptide bond is a(n) a) ionic bond b) ester bond c) amide bond d) C-C bond e) none of the above 6. (1 pt) The most common protein secondary structures (the alpha helix and beta conformation) are stabilized primarily by a) ionic bonds b) disulfide bonds c) van der Waals interactions d) hydrogen bonds e) hydrophobic interactions...
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This note was uploaded on 02/25/2009 for the course BCH 100 taught by Professor Staff during the Winter '08 term at UC Riverside.

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