TEST BANK FOR OPEXSTAX MICROBIOLOGY
QUESTIONS AND SOLUTIONS.ALL CHAPTERS
INCLUDED
Chapter3 9 1:3 9 An3 9 Invisible3 9 World
*39=39Correct39answer39M
ulti39ple39Choice
1. Yeasts3 9 are3 9 which3 9 of3 9 the3 9 following?
A. a3 9 type3 9 of3 9 algae
B. a3 9 type3 9 of3 9 protist
C. any3 9 unicellular3 9 microbe
D. unicellular39 fungi*
Difficulty:39Moderate39ASM39Stand
ar39d:3920
3. The3 9 cell3 9 walls3 9 of3 9 archaeans3 9 often3 9 contain3 9 which3 9 of3 9 the3 9 following3 9 substances?
A. cellulose
B. chitin
C. peptidoglycan
D. pseudopeptidoglycan*
39ASM39Standard:3920
4. Which3 9 of3 9 the3 9 following3 9 is3 9 not3 9 true3 9 of3 9 archaeans?3 9 A.3 9 Some3 9 species3 9 live3 9 on3 9 the3 9
human3 9 body.
B.3 9 They3 9 are3 9 genetically3 9 distinct3 9 from3 9 bacteria.
C.3 9 They3 9 are3 9 only3 9 found3 9 in3 9 extreme3 9 environments.*
D.3 9 They3 9 have3 9 substantial3 9 metabolic3 9 differences3 9 from3 9 bacteria.
Difficulty:39Difficult39A
S39M39Standard:3920
Page3 9 13 9 o
f3 9 1
,Which39of39the39following39is39not39true39about39the39process3
9of39ferm39entation?39A.39It39can39help39preserve39foods,39
preventing39spoila39ge.
B.3 9 It3 9 converts3 9 sugars3 9 to3 9 organic3 9 acids,3 9 alcohols,3 9 and/or3 9 gases3 9 such3 9 as3 9 carbon3 9 dio
xide.
C.3 9 It3 9 is3 9 carried3 9 out3 9 exclusively3 9 by3 9 unicellular3 9 eukaryotes3 9 such3 9 as3 9 yeast.*
D.3 9 It3 9 is3 9 used3 9 to3 9 make3 9 foods3 9 such3 9 as3 9 cheese3 9 and3 9 bread.
Difficulty:39Moderate3 9
AS39M39Standard:3911,39
23,3926
5. The39Romans39may39have39reduced39their39risk39of39waterborne39infectious39diseases39b
y39using39w3 9 hich39of39the39following?
A. a3 9 variety3 9 of3 9 pharmaceutical3 9 products
B. aqueducts3 9 and3 9 a3 9 sewer3 9 system*
C. prophylactic3 9 antibiotics
D. quarantine39of39people39with39le
pros39y39Difficulty:39Moderate
ASM3 9 Standard:3 9 23
6. For3 9 which3 9 of3 9 the3 9 following3 9 is3 9 Thucydides3 9 known?
A. developing39an39effective39sewer39system39in39ancient39Greece,39helping39to39redu
ce39levels3 9 of39disease39in39cities
B. observing39microbes,39using39a39microscope,39for39the39first39time,39even39distinguish
ing39betw39een39bacteria39and39fungi
C. proposing39 that3 9 disease3 9 was3 9 caused3 9 by3 9 microorganisms
D. realizing3 9 that3 9 people3 9 who3 9 had3 9 been3 9 infected3 9 by39 the3 9 Athenian3 9 plague3
9 had3 9 immunit39y39to39reinfection*
Difficulty:39Moderate3
9A39SM39Standard:3923
,3931
7. Ernst39Haeckel39proposed39a39classification39system39consisting39of39which39of39t
he39follow3 9 ing39subgroups?39A.39five39kingdoms
B.3 9 four3 9 kingdoms*
C.3 9 two3 9 domains3 9 and3 9 three3 9 kingdoms
D.3 9 two3 9 domains3 9 and3 9 five3 9 kingdoms
Difficulty:39Moderate39ASM39Stand
Page3 9 23 9 o
f3 9 1
, ar39d:39N/A
Page3 9 33 9 o
f3 9 1
, 8. Viruses39not39included3 9 in39phylogenetic39trees39for39which39of39the39following39reaso
ns?39A.39It39is3 9 too39difficult39to39observe39their39characteristics.
B.3 9 They3 9 are3 9 acellular3 9 and3 9 nonliving.*
C.3 9 They3 9 do3 9 not3 9 have3 9 any3 9 genes,3 9 which3 9 prevents3 9 genetic3 9 analysis.
D.3 9 They3 9 lack3 9 a3 9 nucleus.
Difficulty:39Moderate39ASM39Stand
ar39d:395
9. Which3 9 is39the39best39description39of39the39primary39purpose3 9 of3 9 a39phylogeny?39A.39
Phylogenies39s3 9 how39all39the39alterative39names39for39each39species.
B.3 9 Phylogenies3 9 show3 9 all3 9 the3 9 common3 9 names3 9 for3 9 each3 9 species.
C.3 9 Phylogenies3 9 show3 9 evolutionary3 9 relatedness3 9 between3 9 organisms.*
D.3 9 Phylogenies3 9 show3 9 interactions39 between3 9 species3 9 in3 9 a3 9 shared3 9 habitat.
Difficulty:39Moderate39ASM39Stand
ar39d:395
10. Current3 9 phylogenetic3 9 analyses3 9 include3 9 which3 9 of3 9 the3 9 following?
A. information39from39a39range39of39sources,39including39morphological,39genetic,39and39
biochemi39cal39data*
B. information3 9 on3 9 visible3 9 similarities3 9 only
C. information39regarding39how39to39classify39organisms39on39the39basis39of39external39m
orphologi39cal39characteristics39and39visible39behaviors
D. varied39morphological39and39structural39characteristics,39with39preference39for39leaving
39histori39cal39classifications39to39prevent39confusion
Difficulty:39Moderate39ASM39Stand
ar39d:395
11. Diatoms39 are3 9 classified3 9 within3 9 which3 9 of3 9 the3 9 following3 9 domains?
A. Archaea
B. Bacteria
C. Eukarya*
D. Prokaryota
Difficulty:39Moderate39ASM39Stand
ar39d:39N/A
12. Horizontal3 9 gene3 9 transfer3 9 involves3 9 which3 9 of3 9 the3 9 following?
A. any3 9 transfer3 9 of3 9 genes3 9 in3 9 a3 9 laboratory3 9 setting
Page3 9 43 9 o
f3 9 1
QUESTIONS AND SOLUTIONS.ALL CHAPTERS
INCLUDED
Chapter3 9 1:3 9 An3 9 Invisible3 9 World
*39=39Correct39answer39M
ulti39ple39Choice
1. Yeasts3 9 are3 9 which3 9 of3 9 the3 9 following?
A. a3 9 type3 9 of3 9 algae
B. a3 9 type3 9 of3 9 protist
C. any3 9 unicellular3 9 microbe
D. unicellular39 fungi*
Difficulty:39Moderate39ASM39Stand
ar39d:3920
3. The3 9 cell3 9 walls3 9 of3 9 archaeans3 9 often3 9 contain3 9 which3 9 of3 9 the3 9 following3 9 substances?
A. cellulose
B. chitin
C. peptidoglycan
D. pseudopeptidoglycan*
39ASM39Standard:3920
4. Which3 9 of3 9 the3 9 following3 9 is3 9 not3 9 true3 9 of3 9 archaeans?3 9 A.3 9 Some3 9 species3 9 live3 9 on3 9 the3 9
human3 9 body.
B.3 9 They3 9 are3 9 genetically3 9 distinct3 9 from3 9 bacteria.
C.3 9 They3 9 are3 9 only3 9 found3 9 in3 9 extreme3 9 environments.*
D.3 9 They3 9 have3 9 substantial3 9 metabolic3 9 differences3 9 from3 9 bacteria.
Difficulty:39Difficult39A
S39M39Standard:3920
Page3 9 13 9 o
f3 9 1
,Which39of39the39following39is39not39true39about39the39process3
9of39ferm39entation?39A.39It39can39help39preserve39foods,39
preventing39spoila39ge.
B.3 9 It3 9 converts3 9 sugars3 9 to3 9 organic3 9 acids,3 9 alcohols,3 9 and/or3 9 gases3 9 such3 9 as3 9 carbon3 9 dio
xide.
C.3 9 It3 9 is3 9 carried3 9 out3 9 exclusively3 9 by3 9 unicellular3 9 eukaryotes3 9 such3 9 as3 9 yeast.*
D.3 9 It3 9 is3 9 used3 9 to3 9 make3 9 foods3 9 such3 9 as3 9 cheese3 9 and3 9 bread.
Difficulty:39Moderate3 9
AS39M39Standard:3911,39
23,3926
5. The39Romans39may39have39reduced39their39risk39of39waterborne39infectious39diseases39b
y39using39w3 9 hich39of39the39following?
A. a3 9 variety3 9 of3 9 pharmaceutical3 9 products
B. aqueducts3 9 and3 9 a3 9 sewer3 9 system*
C. prophylactic3 9 antibiotics
D. quarantine39of39people39with39le
pros39y39Difficulty:39Moderate
ASM3 9 Standard:3 9 23
6. For3 9 which3 9 of3 9 the3 9 following3 9 is3 9 Thucydides3 9 known?
A. developing39an39effective39sewer39system39in39ancient39Greece,39helping39to39redu
ce39levels3 9 of39disease39in39cities
B. observing39microbes,39using39a39microscope,39for39the39first39time,39even39distinguish
ing39betw39een39bacteria39and39fungi
C. proposing39 that3 9 disease3 9 was3 9 caused3 9 by3 9 microorganisms
D. realizing3 9 that3 9 people3 9 who3 9 had3 9 been3 9 infected3 9 by39 the3 9 Athenian3 9 plague3
9 had3 9 immunit39y39to39reinfection*
Difficulty:39Moderate3
9A39SM39Standard:3923
,3931
7. Ernst39Haeckel39proposed39a39classification39system39consisting39of39which39of39t
he39follow3 9 ing39subgroups?39A.39five39kingdoms
B.3 9 four3 9 kingdoms*
C.3 9 two3 9 domains3 9 and3 9 three3 9 kingdoms
D.3 9 two3 9 domains3 9 and3 9 five3 9 kingdoms
Difficulty:39Moderate39ASM39Stand
Page3 9 23 9 o
f3 9 1
, ar39d:39N/A
Page3 9 33 9 o
f3 9 1
, 8. Viruses39not39included3 9 in39phylogenetic39trees39for39which39of39the39following39reaso
ns?39A.39It39is3 9 too39difficult39to39observe39their39characteristics.
B.3 9 They3 9 are3 9 acellular3 9 and3 9 nonliving.*
C.3 9 They3 9 do3 9 not3 9 have3 9 any3 9 genes,3 9 which3 9 prevents3 9 genetic3 9 analysis.
D.3 9 They3 9 lack3 9 a3 9 nucleus.
Difficulty:39Moderate39ASM39Stand
ar39d:395
9. Which3 9 is39the39best39description39of39the39primary39purpose3 9 of3 9 a39phylogeny?39A.39
Phylogenies39s3 9 how39all39the39alterative39names39for39each39species.
B.3 9 Phylogenies3 9 show3 9 all3 9 the3 9 common3 9 names3 9 for3 9 each3 9 species.
C.3 9 Phylogenies3 9 show3 9 evolutionary3 9 relatedness3 9 between3 9 organisms.*
D.3 9 Phylogenies3 9 show3 9 interactions39 between3 9 species3 9 in3 9 a3 9 shared3 9 habitat.
Difficulty:39Moderate39ASM39Stand
ar39d:395
10. Current3 9 phylogenetic3 9 analyses3 9 include3 9 which3 9 of3 9 the3 9 following?
A. information39from39a39range39of39sources,39including39morphological,39genetic,39and39
biochemi39cal39data*
B. information3 9 on3 9 visible3 9 similarities3 9 only
C. information39regarding39how39to39classify39organisms39on39the39basis39of39external39m
orphologi39cal39characteristics39and39visible39behaviors
D. varied39morphological39and39structural39characteristics,39with39preference39for39leaving
39histori39cal39classifications39to39prevent39confusion
Difficulty:39Moderate39ASM39Stand
ar39d:395
11. Diatoms39 are3 9 classified3 9 within3 9 which3 9 of3 9 the3 9 following3 9 domains?
A. Archaea
B. Bacteria
C. Eukarya*
D. Prokaryota
Difficulty:39Moderate39ASM39Stand
ar39d:39N/A
12. Horizontal3 9 gene3 9 transfer3 9 involves3 9 which3 9 of3 9 the3 9 following?
A. any3 9 transfer3 9 of3 9 genes3 9 in3 9 a3 9 laboratory3 9 setting
Page3 9 43 9 o
f3 9 1
