biochemistry concepts and connections 1st edition appling test bank

,Biochemistry:xConceptsxandxConnectionsx(Applingxetxal.)xCha
pterx1x x BiochemistryxandxthexLanguagexofxChemistry

1) Thexwaterxcontentxinxthexhumanxbodyxisxapproximately:
A) 90%.
B) 80%.
C) 70%.
D) 60%.
E) 50%.
Answer:x C

2) Thexfourxmostxabundantxchemicalxelementsxinxlivingxsystemsxare:
A) hydrogen,xoxygen,xsulfurxandxphosphorus.
B) hydrogen,xcarbon,xnitrogenxandxoxygen.
C) sodium,xpotassium,xcarbonxandxoxygen.
D) sodium,xpotassium,xnitrogenxandxsulfur.
E) carbon,xnitrogen,xoxygenxandxpotassium.x
Answer:x B
Objective:x 1.2

3) Nearlyxallxproteinsxcontain:
A) cobalt.
B) phosphorus.
C) selenium.
D) sulfur.
E) nonexofxthexabove.x
Answer:x DxObjectiv
e:x 1.2xGlobalxLO:x G
7

4) WhichxofxthexfollowingxstatementsxisxFALSE?
A) Proteinsxcanxbexstructuralxcomponentsxofxcells.
B) Proteinsxcanxtransmitxsignalsxbetweenxcells.
C) Proteinsxcanxtransportxmoleculesxwithinxcellsxandxbetweenxcells.
D) Proteinsxcanxbexbothxhormonesxandxhormonexreceptors.
E) Proteinsxarexthexonlyxbiologicalxpolymerxthatxcanxcatalyzexbiochemicalxreactions.x
Answer:x E
Objective:x 1.2x
GlobalxLO:x G7




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,5) WhichxofxthexfollowingxisxNOTxclassedxasxaxlipid?
A) Cholesterol
B) Palmiticxacid
C) Glycerol
D) Phosphatidylxserine
E) Triacylglycerol
xAnswer:x CxObjec

tive:x 1.2xGlobalxL
O:x G7

6) Aminoxacidsxandxsimplexorganicxcompoundsxlikexcarbonxdioxidexandxhydrogenxcyanidexcannotx
bexproducedxwithoutxthexusexofxenzymes.
Answer:x FALSExObj
ective:x 1.2xGlobalxL
O:x G7

7) Oxidation-
reductionxreactions,xwhichxarexthexbasisxofxmanyxbiochemicalxreactionsxandxpathways,xcan
notxtakexplacexinxthexabsencexofxoxygen.
Answer:x FALSExObj
ective:x 1.2xGlobalxL
O:x G7

8) Manyxbiochemicalxreactionsxthatxformxbiopolymersxfromxmonomericxunitsxinvolvexthexr
emovalxofxwater.
Answer:x TRUExObje
ctive:x 1.2xGlobalxLO
:x G7

9) Thexprinciplexcomponentxofxaxbiologicalxmembranexisxaxtriglyceride.x
Answer:x FALSE
Objective:x 1.2x
GlobalxLO:x G7

10) Thexchemicalxelementx
hasxaxrolexinxbothxtransferxofxenergyxasxwellxasxinxthexstructurexofxnucleicxacids.
Answer:x phosphorusx
Objective:x 1.2xGloba
lxLO:x G7

11) Listxthexfourxmajorxclassesxofxbiologicalxmacromolecules.x
Answer:x lipids,xcarbohydrates,xproteins,xnucleicxacidsxObjecti
ve:x 1.2
GlobalxLO:x G7




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, 12) Anxamphipathicxmoleculexprovidesxthexfoundationxforxbiologicalxmembranesxbecausextheyx
havexbothx andx functionalxgroups.
Answer:x hydrophobic,xhydrophilicxO
bjective:x 1.2
GlobalxLO:x G7

13) Genomicsxisxconcernedxwithxthexentirex ,xwhilex
isxfocusedxonxidentifyingxallxofxthexproteinsxofxaxcell.
Answer:x genome,xproteomicsxObjecti
ve:x 1.5
GlobalxLO:x G1




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