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ConceptsandConnections,2nd
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Edition by Dean Appling
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COMPLETE CHAPTERS 1-26 WITH VERIFIED QUESTIONS &
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CORRECT ANSWERS| A+ GRADED v v v
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, Chapter1BiochemistryandtheLanguageofChemistry
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1) Thewatercontent in thehumanbodyis approximately:
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A) 90%.
B) 80%.
C) 70%.
D) 60%.
E) 50%.
AccurateAnswer:C
2) Thefourmost abundantchemicalelementsinlivingsystemsare:
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A) hydrogen,oxygen, sulfurand phosphorus. n m
B) hydrogen,carbon,nitrogenandoxygen.
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C) sodium,potassium, carbonandoxygen.
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D) sodium,potassium, nitrogenandsulfur. n
E) carbon,nitrogen,oxygenandpotassium.AccurateAnswer:B
Objective:1.2
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3) Nearlyall proteins contain:
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A) cobalt.
B) phosphorus.
C) selenium.
D) sulfur.
E) noneoftheabove.AccurateAnswer:DObjective:1.2Global LO: G7
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4) Which ofthefollowingstatementsis FALSE?
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A) Proteinscanbestructuralcomponentsofcells.
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,B) Proteins cantransmit signalsbetween cells.
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C) Proteinscantransport molecules withincellsandbetween cells. m m m
D) Proteinscanbeboth hormonesandhormonereceptors.
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E) Proteinsaretheonlybiologicalpolymerthatcancatalyzebiochemicalreactions.Accurate
nAnswer:E
Objective:1.2Global LO:G7 n
5) Whichofthefollowingis NOT classedasalipid? n n
A) Cholesterol
B) Palmiticacid
C) Glycerol
D) Phosphatidylserine
E) TriacylglycerolAccurateAnswer:CObjective:1.2GlobalLO:G7
6) Aminoacidsandsimpleorganiccompoundslikecarbondioxideandhydrogencyanidecannot be m
nproduced without the use of enzymes.
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AccurateAnswer:FALSEObjective:1.2GlobalLO:G7
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7) Oxidation-reductionreactions,whicharethebasisofmanybiochemicalreactionsandpathways, n n n n
ncannot take place in the absence of oxygen.
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AccurateAnswer:FALSEObjective:1.2GlobalLO:G7
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8) Manybiochemical reactions that formbiopolymersfrom monomericunitsinvolvetheremoval of
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nwater.
AccurateAnswer:TRUEObjective:1.2Global LO:G7 m n
9) Theprinciplecomponentofabiologicalmembraneisatriglyceride.AccurateAnswer:FALSE n
n Objective: 1.2 Global LO: G7
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, 10) The chemical element
n n hasaroleinboth transferof energyaswell asinthestructureofnucleic
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nacids.
AccurateAnswer:phosphorus Objective: 1.2Global LO:G7 m n m
11) Listthefourmajorclasses ofbiologicalmacromolecules.AccurateAnswer:lipids,carbohydrates,
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nproteins, nucleic acids Objective: 1.2
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GlobalLO:G7
12) Anamphipathicmoleculeprovidesthefoundationforbiologicalmembranesbecausetheyhavebothand
functionalgroups. n
AccurateAnswer:hydrophobic,hydrophilicObjective:1.2
n Global LO: G7
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13) Genomics is concerned withthe entire
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ncell.
AccurateAnswer:genome,proteomicsObjective:1.5Global
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Chapter2The Chemical FoundationofLife:Weak Interactionsin anAqueous
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Environment
1) Eachofthefollowingis anon-covalentinteraction EXCEPT: n n
A) ahydrogen bond. m
B) acarbon-hydrogenbond.
C) theinteractionbetweenanaminoandacarboxylategroup.
D) avander Waalsinteraction.n
E) aninteractionbetween—NH3+andawatermolecule. AccurateAnswer:B
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n Objective: 2.1 Global LO: G7
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