PORTAGE MICROBIOLOGY BIOD171
EXAM 1 QUESTIONS AND CORRECT
ANSWERS
True/False.A2AA2virusA2isA2consideredA2aA2microorganism.A2-A2Ans--
False:A2VirusesA2areA2notA2livingA2andA2asA2suchA2areA2notA2consideredA2microorganisms.
A2VirusesA2can,A2however,A2beA2classifiedA2asA2microbes,A2aA2moreA2generalA2termA2thatA
2includesA2microorganismsA2andA2viruses.
WhatA2isA2theA2smallestA2biologicalA2unitA2ofA2life?A2-A2Ans--aA2cell
WhatA2areA2theA2fourA2mainA2typesA2ofA2macromoleculesA2foundA2inA2cells?A2-A2Ans--
Proteins,A2Lipids,A2NucleicA2Acids,A2Carbohydrates
HowA2manyA2differentA2typesA2ofA2aminoA2acidsA2areA2availableA2fromA2whichA2toA2makeA2
proteins?A2-A2Ans--20
HowA2manyA2aminoA2acidsA2areA2classifiedA2asA2beingA2essentialA2aminoA2acids?A2-
A2Ans--9
WhereA2canA2theA2twoA2majorA2typesA2ofA2nucleicA2acidsA2beA2foundA2inA2theA2cell,A2andA2
whatA2areA2theirA2roles?A2-A2Ans--
WhileA2bothA2DNAA2andA2RNAA2canA2beA2foundA2inA2theA2nucleusA2(centerA2ofA2theA2cell),
A2onlyA2RNAA2isA2capableA2ofA2leavingA2theA2nucleus.A2DNAA2containsA2aA2vastA2amountA2
ofA2hereditaryA2informationA2andA2isA2responsibleA2forA2theA2inheritableA2characteristicsA2o
fA2livingA2organisms.A2RNAA2isA2responsibleA2forA2decipheringA2theA2hereditaryA2informati
onA2inA2DNAA2andA2usingA2itA2toA2synthesizeA2proteins.
CompleteA2theA2followingA2DNAA2strand,A2andA2indicateA2howA2manyA2bondsA2areA2forme
dA2forA2eachA2complementaryA2pair:
3'A2GGTCATCGA25'
5'A2CCA2AGCA23'A2-A2Ans--3'A2GGTCATCGA25'
5'A2CCAGTAGCA23'
ThereA2areA22A2bondsA2formedA2betweenA2AA2andA2T,A2andA23A2bondsA2betweenA2GA2and
A2C.
TheA2plasmaA2membraneA2(selectA2allA2thatA2areA2true):
OnlyA2restrictsA2movementA2ofA2materialsA2intoA2theA2cell
EXAM 1 QUESTIONS AND CORRECT
ANSWERS
True/False.A2AA2virusA2isA2consideredA2aA2microorganism.A2-A2Ans--
False:A2VirusesA2areA2notA2livingA2andA2asA2suchA2areA2notA2consideredA2microorganisms.
A2VirusesA2can,A2however,A2beA2classifiedA2asA2microbes,A2aA2moreA2generalA2termA2thatA
2includesA2microorganismsA2andA2viruses.
WhatA2isA2theA2smallestA2biologicalA2unitA2ofA2life?A2-A2Ans--aA2cell
WhatA2areA2theA2fourA2mainA2typesA2ofA2macromoleculesA2foundA2inA2cells?A2-A2Ans--
Proteins,A2Lipids,A2NucleicA2Acids,A2Carbohydrates
HowA2manyA2differentA2typesA2ofA2aminoA2acidsA2areA2availableA2fromA2whichA2toA2makeA2
proteins?A2-A2Ans--20
HowA2manyA2aminoA2acidsA2areA2classifiedA2asA2beingA2essentialA2aminoA2acids?A2-
A2Ans--9
WhereA2canA2theA2twoA2majorA2typesA2ofA2nucleicA2acidsA2beA2foundA2inA2theA2cell,A2andA2
whatA2areA2theirA2roles?A2-A2Ans--
WhileA2bothA2DNAA2andA2RNAA2canA2beA2foundA2inA2theA2nucleusA2(centerA2ofA2theA2cell),
A2onlyA2RNAA2isA2capableA2ofA2leavingA2theA2nucleus.A2DNAA2containsA2aA2vastA2amountA2
ofA2hereditaryA2informationA2andA2isA2responsibleA2forA2theA2inheritableA2characteristicsA2o
fA2livingA2organisms.A2RNAA2isA2responsibleA2forA2decipheringA2theA2hereditaryA2informati
onA2inA2DNAA2andA2usingA2itA2toA2synthesizeA2proteins.
CompleteA2theA2followingA2DNAA2strand,A2andA2indicateA2howA2manyA2bondsA2areA2forme
dA2forA2eachA2complementaryA2pair:
3'A2GGTCATCGA25'
5'A2CCA2AGCA23'A2-A2Ans--3'A2GGTCATCGA25'
5'A2CCAGTAGCA23'
ThereA2areA22A2bondsA2formedA2betweenA2AA2andA2T,A2andA23A2bondsA2betweenA2GA2and
A2C.
TheA2plasmaA2membraneA2(selectA2allA2thatA2areA2true):
OnlyA2restrictsA2movementA2ofA2materialsA2intoA2theA2cell