Microbiology chapter 12- test questions
with complete solutions
A) most fungi are pathogenic for humans - Answer-Which of the following statements
regarding fungi is FALSE?
A) Most fungi are pathogenic for humans.
B) Fungi are eukaryotic heterotrophs.
C) Fungi reproduce by forming asexual or sexual spores.
D) Most fungi grow well in acidic culture condition.
E) Fungi tolerate low moisture conditions.
D) all are parasites - Answer-Which of the following statements about helminths is
FALSE?
A) They are heterotrophic.
B) They are multicellular animals.
C) They have eukaryotic cells.
D) All are parasites.
E) Some have male and female reproductive organs in one animal.
D) They have chlorophyll. - Answer-Which of the following statements about the
oomycote algae is FALSE?
A) They form hyphae.
B) They produce zoospores in a sporangium.
C) They cause plant diseases.
D) They have chlorophyll.
E) They reproduce sexually.
B) can tolerate low-moisture conditions - Answer-Seventeen patients in ten hospitals
had cutaneous infections caused by Rhizopus. In all seventeen patients, Elastoplast
bandages were placed over sterile gauze pads to cover wounds. Fourteen of the
patients had surgical wounds, two had venous line insertion sites, and one had a bite
wound. Lesions present when the bandages were removed ranged from
vesiculopustular eruptions to ulcerations and skin necrosis requiring debridement. Fungi
are more likely than bacteria to contaminate bandages because they
A) are aerobic.
B) can tolerate low-moisture conditions.
C) prefer a neutral environment (pH 7).
D) have a fermentative metabolism.
E) cannot tolerate high osmotic pressure.
A) lichens are a mutualistic relationship between a fungus and a protozoan - Answer-
Which of the following statements regarding lichens is FALSE?
A) Lichens are a mutualistic relationship between a fungus and a protozoan.
B) Lichens represent a mutualistic relationship between a fungus and an alga.
, C) Lichens are often the first life form to colonize rock or soil.
D) The algal partner produces carbohydrates that are absorbed by the fungal partner.
E) The fungal partner provides a means of attachment and protects the algal partner
from desiccation.
E) anamorphs- lack spores - Answer-Which of the following pairs is mismatched?
A) Basidiomycota — basidiospores
B) Ascomycota — conidiospores
C) Zygomycota — sporangiospores
D) microsporidia — lack mitochondria
E) anamorphs — lack spores
C) 2 and 6 - Answer-In Table 12.1, which of these spores are characteristic of
Penicillium?
A) 1 and 2
B) 3 and 4
C) 2 and 6
D) 1 and 4
E) 4 and 6
E) 7 and 8 - Answer-In Table 12.1, which of these spores are characteristic of
Rhizopus?
A) 1 and 2
B) 6 and 7
C) 2 and 8
D) 1 and 4
E) 7 and 8
C) 5 - Answer-In Table 12.1, which is a thick-walled spore formed as a segment within a
hypha?
A) 1
B) 3
C) 5
D) 7
E) None of the answers is correct.
A) 1,4,5,6,7 - Answer-In Table 12.1, which of these spores are asexual spores?
A) 1, 4, 5, 6, 7
B) 2, 3, 6, 8
C) 1, 3, 5, 8
D) 2, 4, 6, 7, 8
E) All of the spores are asexual.
E) coenocytic hyphae — hyphae with cross-walls - Answer-Which of the following pairs
is mismatched?
A) teleomorph — produces both sexual and asexual spores
with complete solutions
A) most fungi are pathogenic for humans - Answer-Which of the following statements
regarding fungi is FALSE?
A) Most fungi are pathogenic for humans.
B) Fungi are eukaryotic heterotrophs.
C) Fungi reproduce by forming asexual or sexual spores.
D) Most fungi grow well in acidic culture condition.
E) Fungi tolerate low moisture conditions.
D) all are parasites - Answer-Which of the following statements about helminths is
FALSE?
A) They are heterotrophic.
B) They are multicellular animals.
C) They have eukaryotic cells.
D) All are parasites.
E) Some have male and female reproductive organs in one animal.
D) They have chlorophyll. - Answer-Which of the following statements about the
oomycote algae is FALSE?
A) They form hyphae.
B) They produce zoospores in a sporangium.
C) They cause plant diseases.
D) They have chlorophyll.
E) They reproduce sexually.
B) can tolerate low-moisture conditions - Answer-Seventeen patients in ten hospitals
had cutaneous infections caused by Rhizopus. In all seventeen patients, Elastoplast
bandages were placed over sterile gauze pads to cover wounds. Fourteen of the
patients had surgical wounds, two had venous line insertion sites, and one had a bite
wound. Lesions present when the bandages were removed ranged from
vesiculopustular eruptions to ulcerations and skin necrosis requiring debridement. Fungi
are more likely than bacteria to contaminate bandages because they
A) are aerobic.
B) can tolerate low-moisture conditions.
C) prefer a neutral environment (pH 7).
D) have a fermentative metabolism.
E) cannot tolerate high osmotic pressure.
A) lichens are a mutualistic relationship between a fungus and a protozoan - Answer-
Which of the following statements regarding lichens is FALSE?
A) Lichens are a mutualistic relationship between a fungus and a protozoan.
B) Lichens represent a mutualistic relationship between a fungus and an alga.
, C) Lichens are often the first life form to colonize rock or soil.
D) The algal partner produces carbohydrates that are absorbed by the fungal partner.
E) The fungal partner provides a means of attachment and protects the algal partner
from desiccation.
E) anamorphs- lack spores - Answer-Which of the following pairs is mismatched?
A) Basidiomycota — basidiospores
B) Ascomycota — conidiospores
C) Zygomycota — sporangiospores
D) microsporidia — lack mitochondria
E) anamorphs — lack spores
C) 2 and 6 - Answer-In Table 12.1, which of these spores are characteristic of
Penicillium?
A) 1 and 2
B) 3 and 4
C) 2 and 6
D) 1 and 4
E) 4 and 6
E) 7 and 8 - Answer-In Table 12.1, which of these spores are characteristic of
Rhizopus?
A) 1 and 2
B) 6 and 7
C) 2 and 8
D) 1 and 4
E) 7 and 8
C) 5 - Answer-In Table 12.1, which is a thick-walled spore formed as a segment within a
hypha?
A) 1
B) 3
C) 5
D) 7
E) None of the answers is correct.
A) 1,4,5,6,7 - Answer-In Table 12.1, which of these spores are asexual spores?
A) 1, 4, 5, 6, 7
B) 2, 3, 6, 8
C) 1, 3, 5, 8
D) 2, 4, 6, 7, 8
E) All of the spores are asexual.
E) coenocytic hyphae — hyphae with cross-walls - Answer-Which of the following pairs
is mismatched?
A) teleomorph — produces both sexual and asexual spores
