Practice_exam_I - BS 111 section 001(Kopachik Practice Exam I 2010 These questions are similar and representative but are not identical to

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BS 111 section 001 (Kopachik) Practice Exam I 2010 These questions are similar and representative but are not identical to questions on Exam I . Because a question appears here on the practice exam does not automatically mean that a similar question will be on Exam I. Exam I will have questions which are not found here. 1. Polysaccharides, Nucleic acids and polypeptides are all made by condensation dehydration reactions. True or False. a. True. b. False. 2. Carbon has ______________ valence electrons and can form a tetrahedron-shaped molecule. a. Two. b. Three. c. Four. d. Five. e. Six. 3. Table salt (NaCl) has a molecular weight of 58.44 g/mole. To make one half liter (l) of a 2 M solution you would: a. Dissolve 5.844 g of NaCl in 0.5 l of water. b. Dissolve 58.44 g of NaCl in 1 l of water. c. Dissolve 58.44 g of NaCl in 400 ml of water and then add more water to 0.5 l. d. Dissolve 58.44 g of NaCl in 1000 ml of water. 4. Which of the following functional groups is both hydrophilic and ionizable? a. -COOH b. –CH 3 c. –CO d. – SH 5. Which of the following functional groups is hydrophobic? a. –CH 3 . b. –PO 4 c. –NH 3 d. –COOH. 6. Which of the following are the strongest bonds? a. Ionic bond. b. Covalent bond. c. H bond. d. Van der Waals forces.
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7. Which of the following does NOT play a role in making the tertiary structure of a polypeptide? a. –S-S- bond. b. H bonds. c. Peptide bonds. d. Ionic bonds. 8. Find the correct match of the linkage with the polysaccharide below: a. Glycogen : beta C1 to C6 b. Starch : alpha C1 to C4 c. Cellulsoe : alpha C1 to C3 d. None of the above are correct For the following questions the possible answers are: 9. Which shows a methyl group? 10. Which shows a hydroxyl group? 11. Which would lower the pH? 12. Which is positively charged at pH 7? 13. If one strand of DNA is 5’ ATTGCA 3’ then the other strand is: a. 3’ TAACGT 5’ b. 3’ UAACGU 5’ c. 3’ TUUCGU 5’ d. 3’ TAAGCT 5’ e. 3’ TUUGCT 5’
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14. The tertiary structure of a protein is: a. a part of the chain in an alpha helix. b. a part of the chain in a beta pleated sheet. c. bonding amino acids across the chain by peptide bonds. d. a three dimensional shape. e. the first three amino acids in the polypeptide chain. For the following questions the possible answers are: 15. This molecule can form an ester bond with fatty acids: 16. This molecule is an amino acid: 17. What is the following molecule? a.
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This note was uploaded on 10/18/2011 for the course BMB 401 taught by Professor Kaguni during the Fall '08 term at Michigan State University.

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Practice_exam_I - BS 111 section 001(Kopachik Practice Exam I 2010 These questions are similar and representative but are not identical to

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