<p>1. Which of the following physiological functions is not usually served by pr

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<p>1. Which of the following physiological functions is not usually served by proteins? <br /> A.<br />Catalysis<br /> B.<br />Energy reserve<br /> C.<br />Structural support<br /> D.<br />Defense<br /> E.<br />Hormone binding<br /><br />Answer choice D<br /><br />2. Which of the following amino acids would, when incorporated into a polypeptide chain (not at the N or C terminus), make the charge of the polypeptide more positive? <br /> A.<br />Alanine<br /> B.<br />Arginine<br /> C.<br />Aspartate<br /> D.<br />Serine<br /> E.<br />Cysteine<br /><br />Answer choice e<br /><br />3. Where would the leucine side chain most likely be found in a protein dissolved in water? <br /> A.<br />In the interior of the protein in contact with nonpolar side chains<br /> B.<br />In the interior of the protein in contact with polar side chains<br /> C.<br />On the exterior of the protein<br /> D.<br />In the interior of the protein in contact with water<br /> E.<br />Either on the interior or exterior of the protein<br /><br />Answer choice B<br /><br />4. Which of the following functional groups is not found in an R group of the protein amino acids? <br /> A.<br />&#8212;SH<br /> B.<br />&#8212;OH<br /> C.<br />&#8212;NH2<br /><br /> D.<br />&#8212;COO<br /> E.<br />&#8212;CHO<br /> <br />Answer choice E<br /><br />5. The primary structure of proteins is the _______. The primary structure contains the information necessary for the formation of secondary structure, including the _______ and the _______. Secondary structure of proteins is stabilized by the formation of _______ bonds. <br /> A.<br />amino acid sequence; &#946; pleated sheet; &#945; helix; disulfide<br /> B.<br />&#945; helix; amino acid sequence; &#946; pleated sheet; hydrophobic<br /> C.<br />amino acid sequence; &#945; helix; &#946; pleated sheet; peptide<br /> D.<br />amino acid sequence; &#945; helix; &#946; pleated sheet; hydrogen<br /> E.<br />&#946; pleated sheet; &#945; helix; amino acid sequence; hydrogen<br /><br />Answer choice C<br /><br />6. Quaternary structure of proteins refers to <br /> A.<br />the arrangement of the protein's atoms in three-dimensional space.<br /> B.<br />whether the chain is an &#945; helix or &#946; pleated sheet.<br /> C.<br />the number and kind of polypeptide subunits the protein has.<br /> D.<br />the four-fold symmetry of the protein.<br /> E.<br />the lipids or carbohydrates that are attached to the proteins.<br /><br />Answer choice D<br /><br />7. Which of the following statements about proteins is false? <br /> A.<br />Enzymes are proteins.<br /> B.<br />Proteins are part of the phospholipid bilayer.<br /> C.<br />Some hormones are proteins.<br /> D.<br />Proteins are structural components of the cell.<br /> E.<br />All of the above are true, none is false.<br />Answer choice E<br />8. A disulfide bridge is formed by <br /> A.<br />two cysteine side chains.<br /> B.<br />two glycerol linkages.<br /> C.<br />two proline side chains.<br /> D.<br />condensation.<br /> E.<br />hydrolysis.<br /><br />Answer choice A<br /><br />9. Proteins consist of amino acids linked by <br /> A.<br />noncovalent bonds.<br /> B.<br />peptide bonds.<br /> C.<br />phosphodiester bonds.<br /> D.<br />van der Waals forces.<br /> E.<br />Both a and b<br /><br />Answer choice E<br /><br />10. The R groups of amino acids located on the surface of protein molecules in the interior of biological membranes are <br /> A.<br />hydrophobic.<br /> B.<br />hydrophilic.<br /> C.<br />polar.<br /> D.<br />able to form disulfide bridges.<br /> E.<br />electrically charged.<br /><br />Answer choice D</p>

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have at look at this document (its a word document so save it and have a look.): http://assets.openstudy.com/updates/attachments/4e6950ee0b8b4a2b95cf04a6-ta123-1315524852459-bio6.doc

1. D
2. E
3. B
4. E
5. C
6. D
7. E
8. A
9. E
10. D

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