TEST BANK For Textbook Of Diagnostic Microbiology 7th Edition By Mahon ( All Chapters) A+

TEST BANK
Textbook Of Diagnostic Microbiology
7th Edition By Mahon Chapters 1 - 41

,Chapter201:2Bacterial2Cell2Structure,2Physiology,2Metabolism,2and2Genetics2Mah
on:2Textbook2of2Diagnostic2Microbiology,27th2Edition2Test2Bank
MULTIPLE2CHOICE

1. To2survive,2microbial2inhabitants2have2learned2to2adapt2by2varying2all2of2the2following,2except
a. growth2rate.
b. growth2in2all2atmospheric2conditions.
c. growth2at2particular2temperatures.
d. bacterial2shape.
ANS:2 D
The2chapter2begins2by2discussing2the2way2microbial2inhabitants2have2had2to2evolve2to2survive2in2
many2different2niches2and2habitats.2It2discusses2slow2growers,2rapid2growers,2and2replication2wi
th2scarce2or2abundant2nutrients,2under2different2atmospheric2conditions,2temperature2requireme
nts,2and2cell2structure.2Bacterial2shape2as2a2form2of2evolution2is2not2discussed.

OBJ:2 Level22:2Interpretation

2. Who2was2considered2the2father2of2protozoology2and2bacteriology?
a. Anton2van2Leeuwenhoek
b. Louis2Pasteur
c. Carl2Landsteiner
d. Michael2Douglas
ANS:2 A
The2book2discusses2Anton2van2Leeuwenhoek2as2the2inventor2of2the2microscope2and2the2first2perso
n2to2see2the2―beasties.‖2So2they2dubbed2him2the2father2of2protozoology2and2bacteriology.2The2ot
her2three2individuals2were2not2discussed.

OBJ:2 Level21:2Recall

3. Prokaryotic2cells2have2which2of2the2following2structures2in2their2cytoplasm?
a. Golgi2apparatus
b. Ribosomes
c. Mitochondria
d. Endoplasmic2reticulum
ANS:2 B
All2the2structures2listed2are2found2in2eukaryotic2cells,2but2ribosomes2are2the2only2ones2that2ap
ply2to2prokaryotic2cells.

OBJ:2 Level21:2Recall

4. This2form2of2DNA2is2commonly2found2in2eukaryotic2cells.
a. Linear
b. Circular
c. Plasmid
d. Colloid



.
.

, ANS:2 A
Circular2and2plasmid2DNA2are2usually2found2only2in2bacteria,2not2eukaryotic2cells.2Colloid2is2a2pr
operty2of2protein2molecules2and2is2not2associated2with2nucleotides.

OBJ:2 Level21:2Recall

5. The2nuclear2membrane2in2prokaryotes2is
a. missing.
b. impenetrable.
c. a2classic2membrane.
d. a2lipid2bilayer2membrane.

ANS:2 A
Prokaryotic2cells2do2not2have2any2membrane-
bound2structures2in2the2cytoplasm2including2a2structured2nucleus.

OBJ:2 Level21:2Recall

6. A2microorganism2that2is2a2unicellular2organism2and2lacks2a2nuclear2membrane2and2true2nu
cleus2belongs2to2which2classification?
a. Fungi
b. Bacteria
c. Algae
d. Parasite
ANS:2 B
Fungi,2algae,2and2parasites2are2unicellular2eukaryotic2organisms2that2contain2a2true2nucleus.2B
acteria2are2prokaryotic2and2do2not2contain2a2true2nucleus2or2nuclear2membrane.
OBJ:2 Level21:2Recall

7. In2the2laboratory,2the2clinical2microbiologist2is2responsible2for2all2the2following,2except
a. isolating2microorganisms.
b. selecting2treatment2for2patients.
c. identifying2microorganisms.
d. analyzing2bacteria2that2cause2disease.

ANS:2 B
Clinical2microbiologists2do2not2select2the2treatment2for2patients.2They2provide2the2doctor2with2the2
name2of2the2organism2and2the2antibiotics2that2can2kill2the2bacteria,2but2not2in2the2final2selection2
of2treatment2protocols.

OBJ:2 Level22:2Recall

8. What2enables2the2microbiologist2to2select2the2correct2media2for2primary2culture2and2optimize2th
e2chance2of2isolating2a2pathogenic2organism?
a. Determining2staining2characteristics
b. Understanding2the2cell2structure2and2biochemical2pathways2of2an2organism
c. Understanding2the2growth2requirements2of2potential2pathogens2at2specific2body2site
d. Knowing2the2differences2in2cell2walls2of2particular2bacteria
ANS:2 C

, By2understanding2growth2requirements,2a2microbiologist2can2maximize2the2chance2of2the2or
ganism2being2isolated2from2a2culture.2The2other2three2choices2are2used2to2identify2a2bacteri
um2once2it2has2grown2on2media.

OBJ:2 Level22:2Interpretation

9. A2clinical2laboratory2scientist2is2working2on2the2bench,2reading2plates,2and2notices2that2a2cultu
re2has2both2a2unicellular2form2and2a2filamentous2form.2What2type2of2organism2exhibits2these2f
orms?
a. Virus
b. Fungi
c. Bacteria
d. Parasite
ANS:2 B
Viruses2typically2only2have2one2form2and2would2not2grow2on2plate2media.2Bacteria2have2two2fo
rms:2a2vegetative2cell2and2spore2form.2Parasites2may2have2trophozoite,2cysts,2egg,2etc.2Fungi2are2
the2organism2classification2that2may2have2both2unicellular2yeast2forms2and2filamentous2hyphal2f
orms2in2the2same2culture2plate.

OBJ:2 Level22:2Interpretation

10. All2of2the2following2statements2are2true2about2viruses,2except:
a. Viruses2consist2of2DNA2or2RNA2but2not2both.
b. Viruses2are2acellular2but2are2surrounded2by2a2protein2coat.
c. Viruses2can2infect2bacteria,2plants,2and2animals.
d. Viruses2do2not2need2host2cells2to2survive2and2grow.

ANS:2 D
Viruses2need2to2have2a2host2cell2because2they2do2not2have2the2ability2to2reproduce2or2nourish2th
emselves2without2the2host’s2cellular2mechanisms.

OBJ:2 Level22:2Interpretation

11. Diagnostic2microbiologists2apply2placement2and2naming2of2bacterial2organisms2into2all2the2fol
lowing2categories,2except
a. order.
b. family.
c. genus.
d. species.

ANS:2 A
Clinical2microbiologists2use2the2family,2genus,2and2species2taxonomic2categories2to2identify2spe
cies2that2are2important2for2diagnostic2diseases.

OBJ:2 Level21:2Recall

12. Bacterial2species2that2exhibit2phenotypic2differences2are2considered
a. biovarieties.
b. serovarieties.
c. phagevarieties.
d. subspecies.


.
.