Microbiology (Tortora) Test 1
Chapter 1 with detailed answers
and rationales
Algae - correct answer Eukaryotic
Photosynthetic
Sexual/Asexual reproduction
Cellulose cell walls
Do not require organic compounds
Animal Parasites - correct answer Eukaryotes
Helminths (flatworms and roundworms)
Antibiotics - correct answer chemicals produced naturally by bacteria/fungi to act
against other microorganisms, act against peptidoglycan (do not affect human
eukaryotic cells)
Anton van Leeuwenhoek - correct answerfirst to observe live microorganisms
through magnifying lenses
Archaea characterisitics - correct answerProkaryotic
Non-peptidoglycan cell wall (if any); pseudomurein
Found in extreme environments
3 groups: methanogens, extreme halophiles, extreme thermophiles
Not known to cause disease
Bacteria characteristics - correct answersimple, single-celled organisms
peptidoglycan cell wall
reproduce by binary fission
nutrition - mostly organic chemicals
, movement - flagella
biofilm - correct answercomplex aggregation of microbes
Biogenesis - correct answerliving cells can arise only from preexisting living cells
bioremediation - correct answeruse of microbes to remove an environmental
pollutant, food and chemical production
Birth of vaccinations - correct answerJenner inoculates person with cowpox to
prevent future smallpox illness
Cell theory - correct answerall living things are composed of cells
Drug Resistance - correct answerresults from genetic changes in microbes,
enables them to tolerate certain amount of antibiotic that would normally inhibit
them
Ehrlich, 1910 - correct answersalvarsan-arsenic derivative effective against
syphilis
quinine treats malaria
Eukaryotes - correct answerpaired chromosomes (in nuclear membrane)
histones
organelles
polysaccharide cell walls
mitotic spindle
Fermentation - correct answeryeasts convert sugars to alcohol in absence of air
presence of air - vinegar
Fleming - correct answerPenicillum chrysogenum (mold), active inhibitor of
penicillin
Fungi - correct answerEukaryotic
Distinct nucleus containing DNA surrounded by nuclear membrane
Unicellular or multicellular
Chapter 1 with detailed answers
and rationales
Algae - correct answer Eukaryotic
Photosynthetic
Sexual/Asexual reproduction
Cellulose cell walls
Do not require organic compounds
Animal Parasites - correct answer Eukaryotes
Helminths (flatworms and roundworms)
Antibiotics - correct answer chemicals produced naturally by bacteria/fungi to act
against other microorganisms, act against peptidoglycan (do not affect human
eukaryotic cells)
Anton van Leeuwenhoek - correct answerfirst to observe live microorganisms
through magnifying lenses
Archaea characterisitics - correct answerProkaryotic
Non-peptidoglycan cell wall (if any); pseudomurein
Found in extreme environments
3 groups: methanogens, extreme halophiles, extreme thermophiles
Not known to cause disease
Bacteria characteristics - correct answersimple, single-celled organisms
peptidoglycan cell wall
reproduce by binary fission
nutrition - mostly organic chemicals
, movement - flagella
biofilm - correct answercomplex aggregation of microbes
Biogenesis - correct answerliving cells can arise only from preexisting living cells
bioremediation - correct answeruse of microbes to remove an environmental
pollutant, food and chemical production
Birth of vaccinations - correct answerJenner inoculates person with cowpox to
prevent future smallpox illness
Cell theory - correct answerall living things are composed of cells
Drug Resistance - correct answerresults from genetic changes in microbes,
enables them to tolerate certain amount of antibiotic that would normally inhibit
them
Ehrlich, 1910 - correct answersalvarsan-arsenic derivative effective against
syphilis
quinine treats malaria
Eukaryotes - correct answerpaired chromosomes (in nuclear membrane)
histones
organelles
polysaccharide cell walls
mitotic spindle
Fermentation - correct answeryeasts convert sugars to alcohol in absence of air
presence of air - vinegar
Fleming - correct answerPenicillum chrysogenum (mold), active inhibitor of
penicillin
Fungi - correct answerEukaryotic
Distinct nucleus containing DNA surrounded by nuclear membrane
Unicellular or multicellular
