Quizz1_Spr07 - Biochemistry 3020 Instructor: Dr. H.-J....

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Quiz 1 2007-Jan-11 Instructor: Dr. H.-J. Wieden 12:15 – 12:30 Name:_____________________ ID#:__________________ Page:1/2 1. The following amino acid side chain is: CHCH3 | CH3 A) polar. B) hydrophobic. C) hydrophilic. D) acidic. E) basic. 2. The bonds that are important in the secondary structure of a protein are A) hydrogen bonds. B) hydrophobic interactions. C) disulfide bonds. D) salt bridges. E) peptide bonds. 3. The secondary structure of collagen is distinguished by A) single α -helix strands. B) double α -helix strands. C) many α -helixes wound into fibrils. D) a braided triple helix. E) many glycoside links. 4. The fibrous protein responsible for the structure of hair and wool is A) keratin. B) collagen. C) endorphin. D) myosin. E) casein. 5. In an enzyme, the polypeptide chain folds into a compact shape known as the ________ structure. A) pleated B) primary C) secondary D) tertiary E) quaternary
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Quizz1_Spr07 - Biochemistry 3020 Instructor: Dr. H.-J....

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