BIOCHEMISTRY PRACTICE TEST
QUESTIONS AND CORRECT VERIFIED
ANSWERS
WhenA2lactoseA2isA2digestedA2byA2theA2humanA2body,A2eachA2lactoseA2isA2brokenA2downA
2intoA2smallerA2molecules.A2ToA2whichA2ofA2theA2followingA2categoriesA2ofA2moleculesA2do
A2theseA2smallerA2moleculesA2belong?A2-A2Ans--Monosaccharides
aA2sugarA2thatA2formsA22A2monosaccharidesA2-A2Ans--disaccharides
WhatA2isA2theA2optimumA2pHA2ofA2mostA2humanA2enzymes?A2-A2Ans--7
EnzymesA2areA2specialA2typeA2ofA2-A2Ans--Protein
WhichA2statementA2bestA2describesA2theA2enzymeA2representedA2inA2theA2graphs.A2-
A2Ans--
TheA2enzymeA2worksA2bestA2atA2aA2temperatureA2ofA235A2degreesA2CelsiusA2andA2aA2pHA2
ofA28.
WhichA2categoryA2doesA2theA2bio-moleculeA2belong?A2-A2Ans--Lipid
FattyA2acidsA2thatA2areA2unsaturatedA2haveA2-A2Ans--aA2doubleA2bond
WhenA2glycerolA2combinesA2withA23A2fattyA2acids,A2aA2______________________A2mole
culeA2results.A2-A2Ans--triglyceride
AA2typicalA2nucleotideA2isA2composedA2ofA2____________________.A2-A2Ans--
baseA2+A2phosphateA2+A2sugar
TheA2geneticA2materialA2ofA2anA2organismA2isA2composedA2ofA2-A2Ans--nucleicA2acids
WhatA2characteristicA2ofA2carbonA2(C)A2makesA2itA2essentialA2toA2livingA2organisms?A2-
A2Ans--CarbonA2bondsA2inA2manyA2waysA2withA2itselfA2toA2formA2chains.
TheA2functionalA2group(s)A2associatedA2withA2aminoA2acidsA2is/areA2-A2Ans--
bothA2carboxylA2andA2amino
WhichA2chemicalA2isA2classifiedA2asA2anA2enzyme?A2-A2Ans--protease
HowA2manyA2valenceA2electronsA2doesA2aA2carbonA2atomA2have?A2-A2Ans--4
MethanoicA2andA2EthanoicA2acidA2areA2carboxylicA2acidsA2andA2haveA2whatA2functionalA2g
roupA2attachedA2toA2theirA2hydrocarbonA2chain?A2-A2Ans--carboxyl
QUESTIONS AND CORRECT VERIFIED
ANSWERS
WhenA2lactoseA2isA2digestedA2byA2theA2humanA2body,A2eachA2lactoseA2isA2brokenA2downA
2intoA2smallerA2molecules.A2ToA2whichA2ofA2theA2followingA2categoriesA2ofA2moleculesA2do
A2theseA2smallerA2moleculesA2belong?A2-A2Ans--Monosaccharides
aA2sugarA2thatA2formsA22A2monosaccharidesA2-A2Ans--disaccharides
WhatA2isA2theA2optimumA2pHA2ofA2mostA2humanA2enzymes?A2-A2Ans--7
EnzymesA2areA2specialA2typeA2ofA2-A2Ans--Protein
WhichA2statementA2bestA2describesA2theA2enzymeA2representedA2inA2theA2graphs.A2-
A2Ans--
TheA2enzymeA2worksA2bestA2atA2aA2temperatureA2ofA235A2degreesA2CelsiusA2andA2aA2pHA2
ofA28.
WhichA2categoryA2doesA2theA2bio-moleculeA2belong?A2-A2Ans--Lipid
FattyA2acidsA2thatA2areA2unsaturatedA2haveA2-A2Ans--aA2doubleA2bond
WhenA2glycerolA2combinesA2withA23A2fattyA2acids,A2aA2______________________A2mole
culeA2results.A2-A2Ans--triglyceride
AA2typicalA2nucleotideA2isA2composedA2ofA2____________________.A2-A2Ans--
baseA2+A2phosphateA2+A2sugar
TheA2geneticA2materialA2ofA2anA2organismA2isA2composedA2ofA2-A2Ans--nucleicA2acids
WhatA2characteristicA2ofA2carbonA2(C)A2makesA2itA2essentialA2toA2livingA2organisms?A2-
A2Ans--CarbonA2bondsA2inA2manyA2waysA2withA2itselfA2toA2formA2chains.
TheA2functionalA2group(s)A2associatedA2withA2aminoA2acidsA2is/areA2-A2Ans--
bothA2carboxylA2andA2amino
WhichA2chemicalA2isA2classifiedA2asA2anA2enzyme?A2-A2Ans--protease
HowA2manyA2valenceA2electronsA2doesA2aA2carbonA2atomA2have?A2-A2Ans--4
MethanoicA2andA2EthanoicA2acidA2areA2carboxylicA2acidsA2andA2haveA2whatA2functionalA2g
roupA2attachedA2toA2theirA2hydrocarbonA2chain?A2-A2Ans--carboxyl