Bio311C-Chapters1-5

Bio311C-Chapters1-5 - Pract ice Test for BIO 311C Chapters...

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Practice Test for BIO 311C -- Chapters 1-5 Answer the 6 Big Questions on Handout 18 first. Then, test your knowledge on these practice questions. Grade them, then use this practice test to add to your answers to the 6 Big Questions. The questions on this practice test are mostly about details, not major concepts! MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following is a false statement concerning amino groups? A) They are components of urea. B) They are nonpolar. C) They are found in amino acids. D) They contain nitrogen. E) They are basic in pH. 2) Altering which of the following levels of structural organization could change the function of a protein? A) tertiary B) quaternary C) secondary D) primary E) all of the above 3) In the double helix structure of nucleic acids, cytosine hydrogen bonds to A) guanine. B) ribose. C) thymine. D) deoxyribose. E) adenine. 4) What is the reason why hydrocarbons are not soluble in water? A) The majority of their bonds are nonpolar covalent carbon-to-hydrogen linkages. B) The majority of their bonds are polar covalent carbon to hydrogen linkages. C) They exhibit considerable molecular complexity and diversity. D) They are lighter than water. E) They are hydrophilic. 5) Which of the following statements concerning unsaturated fats is true? A) They have fewer fatty acid molecules per fat molecule. B) They have double bonds in the carbon chains of their fatty acids. C) They contain more hydrogen than saturated fats having the same number of carbon atoms. D) They generally solidify at room temperature. E) They are more common in animals than in plants. 6) A strong covalent bond between amino acids that functions in maintaining a polypeptide's specific three- dimensional shape is a (an) A) hydrophobic interaction. B) van der Waals interaction. C) hydrogen bond. D) ionic bond. E) disulfide bond. 7) What is the term used for a protein molecule that assists in the proper folding of other proteins? A) denaturing protein B) tertiary protein C) enzyme protein D) renaturing protein E) chaperonin 9) What do cohesion, surface tension, and adhesion have in common with reference to water? A) All are properties related to hydrogen bonding. B) All increase when temperature increases. C) All are produced by ionic bonding. D) All have to do with nonpolar covalent bonds. E) C and D only 13) When two atoms are equally electronegative, they will interact to form A) ionic bonds. B) ions. C) polar covalent bonds. D) equal numbers of isotopes. E) nonpolar covalent bonds. 14) The bonding of two amino acid molecules to form a larger molecule requires which of the following? A) formation of an ionic bond
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This note was uploaded on 02/28/2010 for the course BIO 50050 taught by Professor Batterton during the Fall '09 term at University of Texas.

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Bio311C-Chapters1-5 - Pract ice Test for BIO 311C Chapters...

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