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Chemistry 8th Edition Zumdahl Test Bank

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Chemistry 8th Edition Zumdahl Test Bank

ISBN-13: 978-0547168173

ISBN-10: 0547168179

 

Description

Chemistry 8th Edition Zumdahl Test Bank

ISBN-13: 978-0547168173

ISBN-10: 0547168179

 

 

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Chapter 22

  1. Name the following:
  2. isopropane
    b. methylpentane
    *c. methylbutane
    d. n-pentane
    e. dodecane

 

  1. Name the following:
  2. n-heptane
    b. 2-methyl-2-ethylbutane
    *c. 3,3-dimethylpentane
    d. 2,2-diethylpropane
    e. none of these

 

  1. Name the following: CH3 CH2 CH3
  2. ethane
    *b. propane
    c. butane
    d. pentane
    e. hexane

 

  1. Name the following:
  2. 2,4-diethylpentane
    *b. 3,5-dimethylheptane
    c. secondary ethylpentane
    d. 2,3-dimethyl-2,3-diethylpropane
    e. none of these

 

  1. Name the following:
  2. n-hexane
    b. isohexane
    c. 1,2,3-trimethylpropane
    d. methyl-diethylmethane
    *e. 3-methylpentane

 

  1. Name the following:
    CH3(CH2)4 CH3
  2. ethane
    b. butane
    c. pentane
    *d. hexane
    e. heptane

 

  1. A student gave a molecule the following name:
    2-methyl-4-t-butylpentane
    However, the teacher pointed out that, although the molecule could be correctly drawn from this name, the name violates the IUPAC rules. What is the correct (IUPAC) name of the molecule?
  2. 2-t-butyl-4-methylpentane
    *b. 2,2,3,5-tetramethylhexane
    c. 2,4,5,5-tetramethylhexane
    d. 1-sec-butyl-1,2,2-trimethylpentane
    e. none of these

 

  1. Which of the following names is a correct one?
  2. 3-methyl-4-isopropylpentane
    b. 2-ethyl-4-tertiary-butylpentane
    *c. 2,2,3,5-tetramethylheptane
    d. t-butylethane
    e. trans-1,2-dimethylethane

 

  1. What is the compound whose carbon skeleton (minus any hydrogen atoms) appears below?
  2. 2,4-diethyl-3,6-dimethylheptane
    b. 2,5-dimethyl-4,6-diethylheptane
    c. 1,4-diethyl-3,6-dimethyl-tridecane
    d. 5-ethyl-3,6-trimethyloctane
    *e. 4-ethyl-2,5,6-trimethyloctane

 

  1. A student gave a molecule the following name: 2-ethyl-3-methyl-5-isopropylhexane
    However, his TA pointed out that, although the molecule could be correctly drawn from this name, the name violates the systematic rules. What is the correct (systematic) name of the molecule?
  2. 3,4-dimethyl-6-isopropylheptane
    b. 2-isopropyl-4,5-dimethylheptane
    c. 3,4,6,7-tetramethyloctane
    d. 1,2-diethyl-3,6,7-trimethylheptane
    *e. 2,3,5,6-tetramethyloctane

 

  1. In lecture, the professor named a molecule 4-ethylpentane. An alert student pointed out that although the correct structure could be drawn, the name did not follow systematic rules. What is the correct systematic name for the molecule?
  2. 2-ethylpentane
    b. 1-methyl-1-propylpropane
    *c. 3-methylhexane
    d. 4-methylhexane
    e. none of these

 

  1. The compound below is the carbon skeleton (minus any hydrogen atoms) of

    Which of these phrases could be used to describe this compound?

  I. C12H26
  II. a substituted octane
  III. a compound with 3 tertiary carbons
  IV. a compound with 3 secondary carbons
  V. a compound with 2 isopropyl groups

 

 

*a. I, II, III
b. II, III, IV
c. III, IV, V
d. II, IV, V
e. I, II, III, IV

 

  1. Which of the following pairs is incorrect?

*a. ethane – C2H4

b. pentane – C5H12

c. hexane – C6H14

d. heptane – C7H16

e. octane – C8H18

 

  1. Why does octane have a higher boiling point than ethane, 126°C versus –89°C?
  2. Octane exhibits hydrogen bonding and ethane does not.
    b. Octane has a higher vapor pressure than ethane.
    c. Octane contains more double bonds than ethane.
    *d. Octane has stronger London dispersion forces than ethane.
    e. At least two of the above are correct.

 

  1. How many isomers of C3H8are there?

*a. 1
b. 2
c. 3
d. 5
e. 6

 

  1. Which is a possible product of the chlorination of butane in the presence of light?

*a. C4H9Cl
b. C4H8Cl
c. C4H10Cl2

d. C4H6Cl2

e. C4H9Cl2

 

  1. Which of the following, upon reacting with oxygen, would form the greatest amount of carbon dioxide?
  2. n-pentane
    b. isopentane
    c. neopentane
    d. Two of the above would form equal amounts.
    *e. All (A-C) of the above would form equal amounts.

 

  1. Cyclobutane has 109° bond angles like all alkanes.
  2. True
    *b. False

 

  1. Name the following:
  2. 1-hexyne
    b. 2-ethynyl butane
    c. 2-ethyl-3-butyne
    *d. 3-methyl-1-pentyne
    e. 3-methyl-4-pentyne

 

  1. Name the following:
  2. 1,1,1-trichloro-5-bromo-3-pentene
    *b. 1-bromo-5,5,5-trichloro-2-pentene
    c. 1,1,1-trichloro-5-bromo-2-pentene
    d. 1,1,1-trichloro-5-bromo-3-pentyne
    e. none of these

 

  1. CH3C ≡ CCH2CH2Cl is named:
  2. 1-chloro-3-pentyne
    b. 5-chloro-2-pentene
    c. 1-acetylenyl-3-chloropropane
    *d. 5-chloro-2-pentyne
    e. 1-chloro-3-pentene

 

  1. One of the ingredients on a margarine container is listed as “polyunsaturated corn oil.” This means that:
  2. All the carbon bonds in the oil are single bonds.
    b. Many of the polymer bonds are unsaturated.
    c. All the carbon–carbon bonds are triple bonds.
    *d. Many of the carbon–carbon bonds are multiple bonds.
    e. None of these.

 

  1. Consider the following four compounds:

    Which are the same molecule?

  2. I and II
    b. I and III
    *c. II and III
    d. III and IV
    e. I and IV

 

  1. Consider the molecule trans-2-butene. Which statement is true?
  2. The molecule has two π bonds.
    b. There is free rotation around every bond in the molecule.
    c. Cis-2-butene is its structural isomer.
    *d. Carbon #2 exhibits sp2hybridization.
    e. None of the above.

 

  1. Hydrocarbons containing a carbon–carbon triple bond are called

*a. alkynes
b. alkenes
c. cyclic alkanes
d. aldehydes
e. alkanes

 

  1. How many of the following molecules exist?
  I. methene
  II. cycloethane
  III. cyclopropyne
  IV. neobutane

 

 

*a. 0
b. 1
c. 2
d. 3
e. 4

 

  1. How many isomers are there of “dichloroethene”?
  2. 2
    *b. 3
    c. 4
    d. 5
    e. 6

 

  1. Propane undergoes dehydrogenation. The product of this is

*a. 1-propene
b. 2-propene
c. cis-1-propene
d. trans-1-propene
e. cis-2-propene

 

  1. Chemical reactions involving alkanes in which hydrogen atoms are removed and the product is an unsaturated hydrocarbon are called
  2. combustion reactions
    *b. dehydrogenation reactions
    c. substitution reactions
    d. addition reactions
    e. polymerization reactions

 

  1. Name the following:
  2. 2-chloro-3-chloro-cis-2-butene
    b. 2,3-dichloro-cis-2-butene
    *c. 2,3-dichloro-trans-2-butene
    d. 1-chloro-1-methyl-2-chloro-propene
    e. 2,3-dichloro-1-methyl-propene

 

  1. Which of the following compounds can exhibit geometrical isomerism?
  2. *b.

    c.

    d.

    e.

 

  1. How many structural and geometrical isomers are there of chloropropene?
  2. 2
    b. 3
    *c. 4
    d. 5
    e. more than 5

 

  1. How many geometric isomers can be drawn for the following compound: CH3CH=CHCH2CH=C(CH3)2

*a. 2
b. 3
c. 4
d. 5
e. 6

 

  1. Which of the following is not a structural isomer of 1-pentene?
  2. 2-pentene
    b. 2-methyl-2-butene
    c. cyclopentane
    d. 3-methyl-1-butene
    *e. 1-methyl-cyclobutene

 

  1. What is the compound represented by the following structure?
  2. cyclohexene, C6H10

    b. cyclohexane, C6H12

    c. cyclohexatriene, C6H9

    d. cyclohexatriene, C6H12

    *e. benzene, C6H6

 

  1. How many different possible trimethylbenzenes exist?
  2. 2
    *b. 3
    c. 4
    d. 5
    e. 6

 

  1. What is the most characteristic reaction of benzene?
  2. oxidation
    b. reduction
    *c. substitution
    d. addition
    e. addition and elimination

 

  1. Mothballs contain what aromatic hydrocarbon?

*a. naphthalene
b. benzene
c. anthracene
d. phenanthrene
e. toluene

 

  1. Name the following:
  2. methyl alcohol
    b. ethyl alcohol
    c. propyl alcohol
    *d. isopropyl alcohol
    e. butanol

 

  1. Which of the following is known as wood alcohol?

*a. methanol
b. ethanol
c. propanol
d. isopropanol
e. none of these

 

  1. Which of the following is known as rubbing alcohol?
  2. methanol
    b. ethanol
    c. propanol
    *d. isopropanol
    e. none of these

 

  1. What alcohols have the greatest commercial value?

*a. methanol and ethanol
b. methanol and phenol
c. ethanol and phenol
d. 1-propanol and ethanol
e. 1-propanol and methanol

 

  1. Which of the following has only one single C-O bond?
  2. ketone
    *b. alcohol
    c. ether
    d. ester
    e. aldehyde

 

  1. The boiling point of methanol is much higher than that of ethane. This is primarily due to
  2. the difference in molar masses of methanol and ethane
    *b. the hydrogen bonding in methanol
    c. the significant molecular size difference between methanol and ethane
    d. the carbon oxygen double bond in the methanol
    e. none of these

 

  1. Classify the following molecule:
  2. primary alcohol
    b. secondary alcohol
    *c. tertiary alcohol
    d. ether
    e. phenol

 

  1. Which of the following is found in beverages such as wine?
  2. methanol
    *b. ethanol
    c. propanol
    d. isopropanol
    e. none of these

 

  1. When C4H8is treated with water and H2SO4,a tertiary alcohol is produced. Which of the following structures could represent C4H8 in this reaction?
  2. CH3CH=CHCH3

    b. CH3CH2CH=CH2

    *c.

    d. CH3CH2CH2CH3

    e. none of these

 

  1. Oxidation of a primary alcohol results in a(n) __________ and oxidation of a secondary alcohol results in a(n) _________.
  2. carboxylic acid, amine
    *b. aldehyde, ketone
    c. ester, ether
    d. ketone, aldehyde
    e. amine, carboxylic acid

 

  1. When the following organic compound is oxidized, what is the major organic product?
  2. 3-pentanoic acid
    b. 3-pentanol
    *c. 3-pentanone
    d. 3-pentanal
    e. No reaction takes place.

 

  1. Name the following:
  2. acetone
    b. butyraldehyde
    c. diethylketone
    *d. diethyl ether
    e. none of these

 

  1. Identify the functional group present in the following organic compound:
  2. ester
    b. aldehyde
    *c. ether
    d. ketone
    e. none of these

 

  1. Which molecule is an ether?
  2. *b. CH3CH2OCH3

    c.
    d. CH3CH2NH2

    e. none of these

 

  1. Name the following:
  2. 2-chloro-3-ethyl-1-isopropylbutanone
    b. isopropyl-chloro,methylbutyl ketone
    c. 2-butyl,chloro,isobutanoyl methane
    *d. 4-chloro-2,5-dimethyl-3-heptanone
    e. 3-methyl-4-chloro-1-isopropylpentanone

 

  1. Identify the type of organic compound shown:
  2. aldehyde
    b. ester
    c. amine
    d. alcohol
    *e. none of these

 

  1. Identify the type of organic compound shown:

*a. aldehyde
b. ester
c. amine
d. ketone
e. none of these

 

  1. Which molecule is a ketone?
  2. b. CH3CH2OCH3

    *c.
    d. CH3CH2NH2

    e. none of these

 

  1. Classify the following molecule:
  2. acid
    *b. aldehyde
    c. amine
    d. ketone
    e. carbonyl

 

  1. Classify the following molecule:
  2. acid
    b. aldehyde
    c. amine
    *d. ketone
    e. carbonyl

 

  1. Which of the following yields a primary alcohol upon reduction?
  2. a ketone
    b. an alkene
    c. an amine
    *d. an aldehyde
    e. an ether

 

  1. Which of the following becomes more soluble in water upon addition of NaOH?
  2. an amine
    *b. a carboxylic acid
    c. an aromatic hydrocarbon
    d. an alkane
    e. two of these

 

  1. Which of the following will yield a carboxylic acid upon oxidation?
  2. a secondary alcohol
    *b. an aldehyde
    c. a cycloalkane
    d. a ketone
    e. tertiary alcohol

 

  1. What organic molecules have the general formula RCOOH?
  2. esters
    b. alcohols
    *c. carboxylic acids
    d. ketones
    e. aldehydes

 

  1. Name the following:
  2. n-propyl acetate
    b. isopropyl formate
    *c. isopropyl acetate
    d. ethyl propanoate
    e. none of these

 

  1. What is the common name for acetylsalicylic acid?
  2. orange juice
    *b. aspirin
    c. acetone
    d. bananas
    e. vinegar

 

  1. What organic compounds often have pleasant fruity odors?
  2. ethers
    b. alkynes
    c. carboxylic acids
    *d. esters
    e. amines

 

  1. Which of the following has a double C-O bond and a single C-O bond?
  2. aldehyde
    *b. ester
    c. alcohol
    d. amine
    e. ether

 

  1. Referring to the structures below, which statement is true?
  I.  
  II.  
  III.  

 

 

  1. I and II have different molecular formulas.
    b. I and III are structural isomers of each other.
    c. II and III are stereoisomers of each other.
    d. II and III are different conformations of the same compound.
    *e. I and III are the same compound.

 

  1. Identify the type of organic compound shown:
  2. aldehyde
    *b. ester
    c. amine
    d. ketone
    e. none of these

 

  1. Which molecule is an ester?

*a.
b. CH3CH2OCH3

c.
d. CH3CH2NH2

e. none of these

 

  1. If you were to heat pentanoic acid and 2-butanol with a catalytic amount of strong acid, you would most likely discover in your flask:
  2. a ketone
    *b. an ester
    c. an amine
    d. an alkane
    e. an aldehyde

 

  1. A carboxylic acid will react with an alcohol to form a(n) __________ and a water molecule.

*a. ester
b. amine
c. polymer
d. ketone
e. aldehyde

 

  1. Aspirin is formed via a(n) __________ reaction.
  2. combustion
    b. hydrogenation
    c. addition
    *d. condensation
    e. substitution

 

  1. Which of the following types of compounds must have an sp2-hybridized carbon center?
  2. cyclic ethers
    *b. esters
    c. alcohols
    d. cycloalkanes
    e. amines

 

  1. Which of the following functional groups does not contain a doubly bonded oxygen (C=O)?
  2. Aldehyde.
    b. Carboxyl.
    c. Ketone.
    d. Carboxylic acid.
    *e. All contain a double bond.

 

  1. H2CCHCH2N(CH3)2is
  2. an alkyne and a secondary amine
    b. an alkene and a primary amine
    *c. an alkene and a tertiary amine
    d. an alkyne and a tertiary amine
    e. none of these

 

  1. Identify the type of organic compound shown: (CH3)3N
  2. aldehyde
    b. ester
    *c. amine
    d. ketone
    e. none of these

 

  1. Which molecule is an amine?
  2. b. CH3CH2OCH3

    c.
    *d. CH3CH2NH2

    e. none of these

 

  1. Classify the following molecule:

*a. primary amine
b. secondary amine
c. tertiary amine
d. amino acid
e. peptide

 

  1. Identify the secondary amine.
  2. CH3NH2

    *b. (CH3)2NH
    c.
    d. NH3

    e. (CH3)3N

 

  1. For which of the following compound(s) are cis and trans isomers possible?
  2. 2,3-dimethyl-2-butene
    *b. 3-methyl-2-pentene
    c. 4,4-dimethylcyclohexanol
    d. ortho-chlorotoluene
    e. All can exhibit cis/trans isomers.

 

  1. Which of the following has an optical isomer?
  2. b.

    c.

    *d.

    e. none of these

 

  1. Which structure represents an optically active aldehyde?
  2. *b.

    c.

    d.

    e.

 

  1. Pick the optically active molecule from the following.
  2. b.

    *c.

    d.

    e. none of these

 

  1. Which of the following molecules exhibits chirality?
  2. CH4

    b. CH3OH
    c. CH3CH2OH
    d.

    *e. none of these

 

  1. Which of the following is optically active (i.e., chiral)?
  2. HN(CH3)2

    b. CH2Cl2

    c. 2-chloropropane
    *d. 2-chlorobutane
    e. 3-chloropentane

 

  1. Identify all the functional groups present in the following organic compound: 1) ketone, 2) aldehyde, 3) acid, 4) alcohol, 5) ether, 6) ester, 7) amine.

*a. 2,6
b. 2,5
c. 1,2
d. 1,2,5
e. 3,4

 

  1. Teflon is an example of a
  2. copolymer
    *b. homopolymer
    c. dimer
    d. two of these
    e. none of these

 

  1. Teflon is a type of
  2. nylon
    b. PVC
    c. elastomer
    *d. polymer
    e. synthetic rubber

 

  1. Consider the polymer drawn below:

    What monomer(s) is (are) needed to produce the above polymer?

  2. CH2= CH2and CH3CH = CH2

    *b. CH2 = C(CH3)2

    c. CH3CH = CHCH3

    d. CO and CH2 = CH2

    e. none of the above

 

  1. The polymer

    is formed by addition of

  2. CH2=CH-CH3

    b. CH3CH2CH3

    *c. CH3–CH=CH–CH3

    d. H2C=CH–CH=CH2

    e. CH3CH=C(CH3)2

 

  1. Which of the following pairs of substances could form an addition copolymer?
  2. H2C=CHCH3 + HOCH2CH2COOH
    b. HO(CH2)4COOH + HOCH2CH=CHCH3

    *c. H2C=CHCH + H2C=CHCH3

    d. HOCH2CH2OH + HOOCCOOH
    e. H2NCH2COOH + H2NCH2CH2COOH

 

  1. The structure of the polymer used in a freezer wrap can mainly be described as follows:
    [CCl2CH2 CCl2CH2 CCl2 CH2 CCl2 CH2]n
    The chief monomer of this wrap would have which structure?

*a. CCl2=CH2

b. Cl2C–CH2

c. Cl2C=CH2=CCl2

d. CCl2

e. none of these

 

  1. Which of the following polymers is not based on a substituted ethylene monomer?

*a. nylon
b. polyvinylchloride
c. Teflon
d. polystyrene
e. polypropylene

 

  1. The greatest single use for PVC is
  2. credit cards
    b. table cloths and mats
    *c. pipe and pipe fittings
    d. garden hose
    e. toys

 

  1. No atoms are lost from starting material in making which kind of polymer?
  2. condensation polymer
    b. polyester polymer
    *c. addition polymer
    d. vulcanized polymer
    e. branched polymer

 

  1. The formula below is the repeating unit of a
  2. homopolymer formed by an addition reaction
    b. homopolymer formed by a condensation reaction
    c. copolymer formed by an addition reaction
    *d. copolymer formed by a condensation reaction
    e. polyester formed by an addition reaction

 

  1. Which of the following pairs of substances could form a polyester?
  2. H2C=CHCH3+ HOCH2CH2COOH
    b. HO(CH2)4COOH + HOCH2CH=CHCH3

    c. H2C=CHCN + H2C=CHCH3

    *d. HOCH2CH2OH + HOOCCOOH
    e. H2NCH2COOH + H2NCH2CH2COOH

 

  1. Which of the following monomers are used to produce the polymer:
 

 

I.

 
 

II.

 
 

 

III.

 

 

 

 

  1. I
    *b. II
    c. III
    d. I and III
    e. II and III

 

  1. What monomer(s) is (are) needed to make the polymer shown below?
  I. HOCH2CH2OH
  II HOOCCH2CH2COOH
  III. HOCH2CH2COOH
  IV. HOCH=CHOH
  V. HOOCCH=CHCOOH

 

 

  1. II
    b. III
    *c. I and II
    d. IV and V
    e. II and III

 

  1. In condensation polymerization, a common by-product is:
  2. ethylene
    b. alcohol
    c. aldehyde
    *d. water
    e. none of these

 

  1. Dacron is an example of a

*a. copolymer
b. homopolymer
c. dimer
d. two of these
e. none of these

 

  1. In each pair below the relative strength of the polymer types is indicated with the stronger polymer on the right. Which comparison is wrong?
  2. low molecular weight < high molecular weight
    *b. polyamide (e.g., nylon) < polyhydrocarbon (e.g., polyethylene)
    c. branched < linear
    d. low density < high density
    e. atactic < isotactic

 

  1. When sulfur is added to rubber and the mixture is heated, the resulting rubber is still elastic but much stronger. This process is called
  2. addition polymerization
    b. isomerization
    c. oligomerization
    *d. vulcanization
    e. halogenation

 

  1. Which factor is not characteristic of a strong polymer?
  2. high crystallinity
    *b. branching
    c. strong intermolecular forces
    d. high molecular weight
    e. isotactic

 

  1. The major use for linear low-density polyethylene (LDPE) is in the manufacturing of
  2. pipes
    *b. film for packaging
    c. Teflon
    d. rubber
    e. carpets

 

  1. HDPE, or high-density polyethylene, is a highly recyclable material because:
  2. It has a high molecular weight (molar mass).
    b. It is both strong and tough.
    *c. It is a thermoplastic polymer.
    d. It is a thermoset polymer.
    e. None of these.

 

  1. Which of the following will increase the rigidity of a polymer?
  2. shorter polymer chains
    b. making chains more branched
    c. decreasing cross-linking
    *d. introducing the possibility of hydrogen bonding between chains
    e. using atactic instead of isotactic chains

 

  1. Polystyrene is an addition polymer of styrene. What would be the effect if some divinylbenzene was added to styrene and then polymerized?
  2. The second polymer would be made less flammable than pure polystyrene.
    b. The polymer would be more flexible. Divinylbenzene acts as a plasticizer.
    *c. Divinylbenzene would act as a cross-linking agent, making the polymer stronger.
    d. There would be no effect on the properties of the polymer.
    e. There would be an effect, but it cannot be predicted.

 

  1. How many of the following apply to globular proteins?
  I. Provide structural integrity and strength for many types of tissues.
  II. Transport and store oxygen and nutrients.
  III. Act as catalysts.
  IV. Are the main components of muscle, hair, and cartilage.
  V. Fight invasion of the body by foreign objects.

 

 

  1. 1
    b. 2
    *c. 3
    d. 4
    e. 5

 

  1. How many of the following apply to fibrous proteins?
  I. Provide structural integrity and strength for many types of tissues.
  II. Transport and store oxygen and nutrients.
  III. Act as catalysts.
  IV. Are the main components of muscle, hair, and cartilage.
  V. Fight invasion of the body by foreign objects.

 

 

  1. 1
    *b. 2
    c. 3
    d. 4
    e. 5

 

  1. Which of the following is not a function of proteins?
  2. Structure.
    b. Catalysis.
    c. Oxygen transport.
    d. Energy transformation.
    *e. All of these are functions of proteins.

 

  1. Which one of the following statements about the structure of proteins is incorrect?
  2. Disulfide bonds provide strong intrachain interactions.
    b. Hydrogen bonding stabilizes the α-helix proteins.
    *c. Nonpolar groups tend to face the outside of a protein in an aqueous solution.
    d. Ionized amino acid side chains can form salt bridges within a protein.
    e. Heat can disrupt tertiary structure.

 

  1. The building blocks of all proteins are
  2. pleated sheets
    *b. alpha amino acids
    c. alpha helices
    d. tertiary structures
    e. none of these

 

  1. What are the building blocks of proteins?
  2. nucleotides
    b. glucose and sucrose
    c. lipids
    *d. amino acids
    e. esters

 

  1. A polypeptide is
  2. an addition polymer of amino acids
    *b. a condensation polymer of amino acids
    c. a polymer of sugar molecules
    d. a part of nucleic acids
    e. none of these

 

  1. The condensation product of two amino acids is a(n)

*a. dipeptide
b. glycol
c. ether
d. ester
e. diastereomer

 

  1. Nonpolar amino acid side chains contain substituents made mostly of what atoms?

*a. carbon and hydrogen
b. nitrogen and oxygen
c. carbon and nitrogen
d. carbon and oxygen
e. nitrogen and hydrogen

 

  1. Polar amino acid side chains contain functional groups containing mostly what atoms?
  2. carbon and hydrogen
    *b. nitrogen and oxygen
    c. carbon and nitrogen
    d. carbon and oxygen
    e. nitrogen and hydrogen

 

  1. Which of the following is incorrect?
  2. Nonpolar amino acid side chains are hydrophobic.
    b. Polar amino acid side chains are hydrophilic.
    c. Nonpolar amino acid side chains contain hydrogen.
    d. Polar amino acid side chains contain nitrogen.
    *e. Both polar and nonpolar amino acid side chains contain oxygen atoms.

 

  1. Consider the two amino acids below. The circled portion of each amino acid represents their R groups, or side chains.

    Leucine Asparagine
    Which of the following statements are true?

  2. Leucine’s side chain is polar and asparagine’s side chain is nonpolar.
    *b. The side chain on asparagine is hydrophilic.
    c. Asparagine is used to make polypeptides, but leucine is not.
    d. Leucine’s large side chain makes it very reactive and unstable.
    e. At least two of the above statements are true.

 

  1. Which of the following is the best description of a protein?
  2. an alternating chain of amino acids and nucleic acids
    b. a chain of amino acids connected by ester bonds
    c. two antiparallel chains of nucleic acids connected by hydrogen bonding
    *d. a chain of amino acids formed by condensation polymerization
    e. a chain of nucleotides connected by phosphodiester bonds

 

  1. The structures of proteins are partially determined by the order of various amino acids in the macromolecule. This level of structural determination is known as

*a. primary structure
b. secondary structure
c. tertiary structure
d. quaternary structure
e. order of bases

 

  1. The analysis of a protein for its amino acid content is valuable in determining the protein’s
  2. tertiary structure
    b. secondary structure
    c. quaternary structure
    *d. primary structure
    e. main structure

 

  1. The primary structure of a protein chain is

*a. the order of amino acids
b. the arrangement of the chain in the long molecule
c. the overall shape of the protein
d. determined by the types of bonds it contains
e. determined by the side chains

 

  1. How many possible sequences can be made for a polypeptide with eight different amino acids?
  2. 8
    b. 64
    c. 256
    *d. 40320
    e. none of these

 

  1. Hydrogen bonding between C=O groups and NH groups in the backbone of a protein determines the
  2. primary structure
    *b. secondary structure
    c. tertiary structure
    d. quaternary structure
    e. all of these

 

  1. The alpha helix of a protein is held in a coiled conformation partly because of

*a. hydrogen bonding
b. optical activity
c. active sites
d. double bonding
e. ionization energies

 

  1. A pleated sheet arrangement of proteins
  2. is found in muscle fibers
    b. contains interchain hydrogen bonds
    c. is found in silk fibers
    d. results when hydrogen bonds occur between protein chains
    *e. all of these

 

  1. An example of a secondary structure of a protein is
  2. an alpha amino acid
    b. a peptide linkage
    *c. a pleated sheet
    d. serine
    e. none of these

 

  1. In order to give someone a “permanent” (permanent waving of hair), these must be broken and reformed.

*a. disulfide linkages
b. pleated sheets
c. alpha helices
d. alpha amino acids
e. globular proteins

 

  1. The overall shape of a protein is maintained by
  2. hydrogen bonding
    b. ionic bonds
    c. dipole-dipole bonding
    d. covalent bonds
    *e. all of these

 

  1. Which statement (A–D) is false with respect to proteins?

*a. Primary structure refers to the sequence of nucleotides.
b. Secondary structure includes α-helixes.
c. Tertiary structure includes disulfide bonds.
d. The overall shape of a protein is related to the tertiary structure.
e. All are false.

 

  1. The secondary and tertiary structures of most biomolecules are determined by
  2. hydrophobic bonding
    b. hydrogen bonding
    c. salt bridges
    d. disulfide bonds
    *e. all of these

 

  1. When heat is added to proteins, the hydrogen bonding in the secondary structure breaks apart. What are the algebraic signs of ΔH and ΔS for the denaturation process?

*a. Both ΔH and ΔS are positive.
b. Both ΔH and ΔS are negative.
c. ΔH is positive and ΔS is negative.
d. ΔH is negative and ΔS is positive.
e. ΔH is positive and ΔS is 0.

 

  1. The process of breaking down the three-dimensional structure of a protein is called
  2. degradation
    *b. denaturation
    c. decomposition
    d. fission
    e. none of these

 

  1. Which of the following is not a monosaccharide?

*a. Sucrose.
b. Glucose.
c. Fructose.
d. Galactose.
e. All of these are monosaccharides.

 

  1. The following represents the structure of a carbohydrate. Which of the choices would more specifically classify this compound?
  2. Hexose and ketose
    b. Pentose and aldose
    *c. Hexose and aldose
    d. Pentose and ketose
    e. Tetrose and aldose

 

  1. Which of the following would be the correct classification of the carbohydrate shown below?
  2. monosaccharide
    *b. disaccharide
    c. polysaccharide
    d. starch
    e. cellulose

 

  1. The monomers that make up a starch molecule are:
  I. optically active
  II. not optically active
  III. aldehydes
  IV. ketones
     

and the polymer itself is formed primarily by:

  V. addition.
  VI. condensation.

 

 

  1. I, III, V
    b. II, IV, VI
    *c. I, III, VI
    d. II, IV, V
    e. I, IV, VI

 

  1. Table sugar is a disaccharide formed from

*a. alpha-D-glucose and fructose
b. beta-D-glucose and fructose
c. D-galactose and D-ribose
d. D-galactose and fructose
e. none of these

 

  1. All of the following statements about carbohydrates are true except which one?
  2. They serve as a food source for most organisms.
    b. They are used as a structural material for plants.
    c. Many have the empirical formula CH2O.
    d. Starch and cellulose are two important carbohydrates made of monosaccharides.
    *e. Fructose, a sugar found in fruit, has five carbon atoms.

 

  1. Which of the following pairs is incorrect?
  2. sucrose – disaccharide
    b. starch – polysaccharide
    *c. glycogen – disaccharide
    d. cellulose – polysaccharide
    e. fructose – monosaccharide

 

  1. What carbohydrate is the form in which plants store glucose for future use as cellular fuel?

*a. starch
b. cellulose
c. glycogen
d. sucrose
e. fructose

 

  1. Which of the following is a carbohydrate reservoir for animals?
  2. starch
    b. cellulose
    *c. glycogen
    d. two of these
    e. none of these

 

  1. What carbohydrate breaks down rapidly when energy is needed?
  2. starch
    b. cellulose
    *c. glycogen
    d. sucrose
    e. fructose

 

  1. Which of the following can be found both in DNA and RNA?
  2. ribose
    b. deoxyribose
    c. uracil
    *d. phosphate
    e. thymine

 

  1. What does a nucleotide contain?
  2. a sugar and a phosphate only
    *b. a sugar, a phosphate, and an organic base
    c. amino acids
    d. a sugar
    e. four organic bases

 

  1. Protein synthesis in a human occurs
  2. in the nucleus
    *b. on the ribosomes in the cytoplasm
    c. on the cell membranes
    d. by reading pairs of tRNA nucleotides called codons
    e. none of these

 

  1. Which of the following is (are) not necessary for protein synthesis at the time and place where synthesis occurs?
  2. amino acids
    b. mRNA
    *c. DNA
    d. tRNA
    e. ribosomes

 

  1. The complimentary nucleic acid sequence for the following DNA sequence—GAC TAC GTT AGC—is
  2. GAC TAC GTT AGC
    b. TCA GCA TGG CTA
    c. CGA TTG CAT CAG
    *d. CTG ATG CAA TCG
    e. none of these

 

  1. The complimentary nucleic acid sequence for the following DNA sequence—ATG GAC GTA TTC—is
  2. ATG GAC GTA TTC
    *b. TAC CTG CAT AAG
    c. CGT TCA TGC GGA
    d. CTT ATG CAG GTA
    e. none of these

 

  1. The complimentary nucleic acid sequence for the following DNA sequence—CTG ACT TAC GCT—is
  2. AGT CAG GCA TAG
    b. CTG ACT TAC GCT
    *c. GAC TGA ATG CGA
    d. TCG CAT TCA GTC
    e. none of these

 

  1. Which of the following organic bases is not found in RNA?
  2. adenine
    b. guanine
    c. cytosine
    *d. thymine
    e. uracil

 

  1. What type of bonding occurs between two consecutive nucleotides in RNA?

*a. ester
b. amide
c. hydrogen
d. ionic
e. hydrophobic

 

  1. Which of the following has the smallest molar mass?
  2. mRNA
    b. dRNA
    c. rRNA
    d. sRNA
    *e. tRNA

 

  1. An anticodon
  2. is part of tRNA
    b. complements the codon on mRNA
    c. codes for a specific amino acid
    d. is a sequence of three bases
    *e. all of the above

 

  1. Which of the following statements is correct?
  2. No one has ever made a polymer using amide bonds.
    b. Nucleic acids are made of nucleotides joined together with amide bonds.
    c. The primary structure of DNA is determined by the order of amino acids.
    d. All of the above (A-C) statements are true.
    *e. None of these.

 

  1. Which statement is true?
  2. Protein synthesis takes place in the cytoplasm of the cell.
    b. Each gene in the DNA molecule codes for a specific protein.
    c. Messenger RNA can be found in both the nucleus and the cytoplasm of each cell.
    d. When a peptide bond is formed, H2O is produced.
    *e. All of these.

 

  1. Indicate the total number of isomers in the following compound: C4H10

Correct Answer(s):
a. 2

 

  1. Draw the isomers for C4H10.

 

  1. Write molecular equations for the following reactions:

Reference: Ref 22-1

halogenation of ethane

 

  1. Write molecular equations for the following reactions:

Reference: Ref 22-1

methyl substitution of benzene

 

  1. Write molecular equations for the following reactions:

Reference: Ref 22-1

formation of propyl propanoate

 

  1. Write molecular equations for the following reactions:

Reference: Ref 22-1

hydration of 2-butene

 

  1. Draw and name the missing reactant below.

    ? + Cl2 CHCl3+ HCl

 

  1. Draw and name the missing product below.

 

  1. Draw and name the two possible missing products below.
  acid catalyst  
CH3CH=CH2  +  H2O   ?