test1a-2008tst-practice_1

Test1a-2008tst-pract - MULTIPLE CHOICE Choose the one alternative that best completes the statement or answers the question 1 Which property of the

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MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which property of the carbon atom gives it compatibility with a greater number of different elements than any other type of atom? A) Carbon has six to eight neutrons. B) Carbon forms ionic bonds. C) Carbon has a valence of 4. D) Only A and C are correct. E) A, B, and C are correct. 2) What maintains the secondary structure of a protein? A) peptide bonds B) hydrogen bonds C) electrostatic charges D) ionic bonds E) disulfide bridges 3) Which of the following are nitrogen bases of the purine type? A) guanine and adenine B) cytosine and guanine C) adenine and thyamine D) uridine and cytosine E) thyamine and uridine 4) Which bonds must be broken for water to vaporize? A) polar covalent bonds B) hydrogen bonds C) nonpolar covalent bonds D) ionic bonds E) Both C and D are correct. 5) In the double-helix structure of nucleic acids, cytosine hydrogen bonds to A) adenine. B) deoxyribose. C) guanine. D) ribose. E) thymine. 6) What is a fat or triacylglycerol? A) a lipid made of three fatty acids and glycerol B) a kind of lipid that makes up much of the plasma membrane C) a protein with tertiary structure D) a carbohydrate with three sugars E) a molecule formed from three alcohols Figure 5.2
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7) What is the molecule illustrated in Figure 5.2? A) an unsaturated fatty acid B) similar in structure to a steroid C) a polyunsaturated triglyceride D) a saturated fatty acid E) a common component of plant oils 8) What is the maximum number of hydrogen bonds a water molecule can form with neighboring water molecules? A) three B) one C) five D) four E) two
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This note was uploaded on 12/16/2009 for the course BIOLOGY 2112 taught by Professor Rappaport during the Fall '08 term at Temple.

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Test1a-2008tst-pract - MULTIPLE CHOICE Choose the one alternative that best completes the statement or answers the question 1 Which property of the

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