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ConceptsandConnections,2nd Edition
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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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, Chapter1 Biochemistryandthe Languageof Chemistry
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1) Thewatercontent in thehumanbodyis approximately:
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A) 90%.
B) 80%.
C) 70%.
D) 60%.
E) 50%.
Accurate Answer: C
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2) Thefourmost abundantchemicalelementsinlivingsystemsare:
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A) hydrogen, oxygen, sulfurand phosphorus.
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B) hydrogen, carbon, nitrogenandoxygen.
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C) sodium, potassium, carbonandoxygen.
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D) sodium, potassium, nitrogenand sulfur.
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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. Accurate Answer: DObjective: 1.2Global LO: G7
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4) Which of thefollowingstatementsis FALSE?
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A) Proteinscanbestructuralcomponentsofcells.
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,B) Proteinscantransmitsignalsbetween cells.
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C) Proteinscantransport molecules withincells andbetween cells. m m m m
D) Proteinscanbebothhormonesandhormonereceptors.
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E) Proteinsaretheonlybiologicalpolymerthatcancatalyzebiochemicalreactions.Accurate m
Answer:E
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Objective:1.2Global LO:G7
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5) Whichofthefollowingis NOT classedasalipid? m m
A) Cholesterol
B) Palmiticacid
C) Glycerol
D) Phosphatidylserine
E) Triacylglycerol AccurateAnswer:CObjective:1.2Global LO: G7
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6) Aminoacidsandsimpleorganiccompoundslikecarbondioxideandhydrogencyanide cannotbe m m
produced without the use of enzymes.
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Accurate Answer: FALSEObjective: 1.2 Global LO:G7
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7) Oxidation-reductionreactions, whicharethebasis of manybiochemical reactionsandpathways,m m m m
cannot take place in the absence of oxygen.
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Accurate Answer: FALSEObjective: 1.2 Global LO:G7
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8) Manybiochemical reactions that form biopolymers from monomeric unitsinvolvetheremoval of
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water.
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Accurate Answer: TRUEObjective: 1.2 Global LO: G7
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9) Theprinciplecomponentofabiologicalmembraneisatriglyceride. Accurate Answer: FALSE m m m
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, 10) The chemical element
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acids.
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AccurateAnswer: phosphorus Objective: 1.2 Global LO: G7m m m m m m
11) Listthefourmajorclasses of biologicalmacromolecules. Accurate Answer: lipids,carbohydrates,m m m m m
proteins, nucleic acids Objective: 1.2
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GlobalLO: G7
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12) An amphipathicmoleculeprovidesthefoundationfor biological membranesbecausetheyhaveboth and
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functional groups. m m
AccurateAnswer:hydrophobic,hydrophilicObjective:1.2
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13) Genomics is concerned withthe entire m m m m , while isfocused onidentifyingall oftheproteinsofa
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cell.
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AccurateAnswer:genome,proteomicsObjective:1.5Global m m
m LO: G1
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Chapter2 The Chemical FoundationofLife:Weak Interactionsin an Aqueous
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Environment
1) Eachofthefollowingis anon-covalent interaction EXCEPT: m m m
A) ahydrogen bond. m
B) acarbon-hydrogenbond.
C) theinteractionbetweenanaminoandacarboxylategroup.
D) avander Waalsinteraction. m
E) aninteractionbetween—NH3+andawatermolecule. Accurate Answer: B
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m Objective: 2.1 Global LO: G7 m m m m
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