Question 1

Which of the following statements regarding fungi is FALSE?

Accepted Answer

A)   Most fungi are pathogenic for humans.
B)   Fungi tolerate low moisture conditions.
C)   Most fungi grow well in acidic culture condition.
D)   Fungi reproduce by forming asexual or sexual spores.
E)   Fungi are eukaryotic heterotrophs.F) A) and D)
G) B) and C)

Question 2

Helminthic diseases are usually transmitted to humans by

Accepted Answer

A)   genitourinary route.
B)   vectors.
C)   respiratory route.
D)   gastrointestinal route.
E)   aerosols.F) A) and B)
G) A) and C)

Question 3

Assume you have isolated a multicellular heterotrophic organism that produces coenocytic hyphae, motile zoospores, and cellulose cell walls. It is most likely a(n)

Accepted Answer

A)   oomycote alga.
B)   green alga.
C)   zygomycete fungus.
D)   ascomycete fungus.
E)   tapeworm.F) A) and B)
G) C) and D)

Question 4

In helminth life cycles, the organism that harbors the sexually reproductive phase of the parasite is called the intermediate host.

Accepted Answer

A) True 
 B)False

Question 5

You see acid- fast oocysts in a fecal sample from a patient who has diarrhea. What is the MOST likely cause?

Accepted Answer

A)   Taenia
B)   Cryptosporidium
C)   diatoms
D)   Entamoeba
E)   GiardiaF) B) and E)
G) B) and C)

Question 6

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

Accepted Answer

A)   can tolerate low- moisture conditions.
B)   are aerobic.
C)   have a fermentative metabolism.
D)   cannot tolerate high osmotic pressure.
E)   prefer a neutral environment (pH 7) .F) B) and D)
G) A) and D) A

Question 7

Which of the following is a nucleated, unicellular organism that, if you changed the incubation temperature, would form filaments with conidiospores?

Accepted Answer

A)   euglenozoa
B)   plasmodial slime mold
C)   cellular slime mold
D)   ascomycete
E)   tapewormF) B) and D)
G) A) and B) D

Question 8

Which of the following statements about algae is FALSE?

Accepted Answer

A)   All are unicellular.
B)   They use CO2 as their carbon source.
C)   They produce oxygen from hydrolysis of water.
D)   They use light as their energy source.
E)   Some are capable of sexual reproduction.F) B) and E)
G) B) and D)

Question 9

Which of the following statements regarding lichens is FALSE?

Accepted Answer

A)   The fungal partner provides a means of attachment and protects the algal partner from desiccation.
B)   Lichens are often the first life form to colonize rock or soil.
C)   Lichens are very tolerant to pollution.
D)   The algal partner produces carbohydrates that are absorbed by the fungal partner.
E)   Lichens represent a mutualistic relationship between a fungus and an alga.F) C) and D)
G) A) and B) C

Question 10

Which of the following pairs is mismatched?

Accepted Answer

A)   systemic mycosis - fungal infection of body organs
B)   coenocytic hyphae - hyphae with cross- walls
C)   dermatomycosis - fungal infection of the skin
D)   teleomorph - produces both sexual and asexual spores
E)   dimorphic fungus - grows as a yeast or a moldF) C) and D)
G) B) and E)

Question 11

Which of the following pairs are mismatched? 1. arthroconidium - formed by fragmentation
2)  sporangiospore - formed within hyphae
3)  conidiospore - formed in a chain
4)  blastoconidium - formed from a bud
5)  chlamydoconidium - formed in a sac

Accepted Answer

A)   2 and 5
B)   4 and 5
C)   2 and 3
D)   1 and 2
E)   3 and 4F) B) and C)
G) None of the above

Question 12

Which of the following is the most effective control for malaria?

Accepted Answer

A)   eliminate Anopheles
B)   vaccination
C)   eliminate the intermediate host
D)   treating patients
E)   None of these is an effective control.F) B) and E)
G) A) and C)

Question 13

Which of the following organisms is photoautotrophic protozoan?

Accepted Answer

A)   cellular slime mold
B)   oomycote
C)   plasmodial slime mold
D)   Euglena
E)   PhytophthoraF) C) and D)
G) C) and E)

Question 14

Three weeks after a river rafting trip, three family members experienced symptoms of coughing, fever, and chest pain. During the rafting trip, the family had consumed crayfish that they caught along the river banks. An examination of the patients' sputum revealed helminth eggs, and serum samples were positive for antibodies to Paragonimus. All of the family members recovered following treatment with praziquantel. In the Paragonimus life cycle,

Accepted Answer

A)   both humans and crayfish are intermediate hosts.
B)   the source of the infection was the river water.
C)   the crayfish are the definitive host and humans are the intermediate host.
D)   both humans and crayfish are definitive hosts.
E)   humans are the definitive host and crayfish are the intermediate host.F) C) and D)
G) All of the above

Question 15

Some species of dinoflagellates produce neurotoxins that cause fish kills and red tides.

Accepted Answer

A) True 
 B)False

Question 16

Arthropod vectors are blood- sucking animals such as ticks, lice, and fleas that transmit microbial pathogens.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following statements about the oomycote algae is FALSE?

Accepted Answer

A)   They produce zoospores in a sporangium.
B)   They form hyphae.
C)   They cause plant diseases.
D)   They have chlorophyll.
E)   They reproduce sexually.F) B) and D)
G) B) and E)

Question 18

The life cycle of the fish tapeworm is similar to that of the beef tapeworm. Which of the following is the most effective preventive measure?

Accepted Answer

A)   salting fish before eating
B)   wearing gloves while handling fish
C)   not swimming in fish- infested waters
D)   refrigerating stored fish
E)   cooking fish before eatingF) B) and E)
G) B) and D)

Question 19

In the malaria parasite life cycle

Accepted Answer

A)   humans are the intermediate host.
B)   mosquitoes are the definitive host.
C)   mosquitoes are the vector.
D)   humans are the intermediate host and mosquitos are the definitive host.
E)   humans are the intermediate host and mosquitoes are both the definitive host and the vector.F) A) and C)
G) B) and E)

Question 20

Which of the following statements regarding protozoa is FALSE?

Accepted Answer

A)   Protozoa are unicellular eukaryotes.
B)   Protozoa are common in water and soil.
C)   Nearly all protozoa cause disease.
D)   Some protozoan pathogens are transmitted by arthropod vectors.
E)   Most protozoa reproduce asexually.F) B) and E)
G) All of the above

Exam 12: The Eukaryotes: Fungi, Algae, Protozoa, and Helminths

Which of the following statements regarding fungi is FALSE?

Correct Answer
verified

Helminthic diseases are usually transmitted to humans by

Correct Answer
verified

Assume you have isolated a multicellular heterotrophic organism that produces coenocytic hyphae, motile zoospores, and cellulose cell walls. It is most likely a(n)

Correct Answer
verified

In helminth life cycles, the organism that harbors the sexually reproductive phase of the parasite is called the intermediate host.

Correct Answer
verified

You see acid- fast oocysts in a fecal sample from a patient who has diarrhea. What is the MOST likely cause?

Correct Answer
verified

Correct Answer
verified
A

Which of the following is a nucleated, unicellular organism that, if you changed the incubation temperature, would form filaments with conidiospores?

Correct Answer
verified
D

Which of the following statements about algae is FALSE?

Correct Answer
verified

Which of the following statements regarding lichens is FALSE?

Correct Answer
verified
C

Which of the following pairs is mismatched?

Correct Answer
verified

Which of the following pairs are mismatched? 1. arthroconidium - formed by fragmentation 2) sporangiospore - formed within hyphae 3) conidiospore - formed in a chain 4) blastoconidium - formed from a bud 5) chlamydoconidium - formed in a sac

Correct Answer
verified

Which of the following is the most effective control for malaria?

Correct Answer
verified

Which of the following organisms is photoautotrophic protozoan?

Correct Answer
verified

Correct Answer
verified

Some species of dinoflagellates produce neurotoxins that cause fish kills and red tides.

Correct Answer
verified

Arthropod vectors are blood- sucking animals such as ticks, lice, and fleas that transmit microbial pathogens.

Correct Answer
verified

Which of the following statements about the oomycote algae is FALSE?

Correct Answer
verified

The life cycle of the fish tapeworm is similar to that of the beef tapeworm. Which of the following is the most effective preventive measure?

Correct Answer
verified

In the malaria parasite life cycle

Correct Answer
verified

Which of the following statements regarding protozoa is FALSE?

Correct Answer
verified

Exam 12: The Eukaryotes: Fungi, Algae, Protozoa, and Helminths

Which of the following statements regarding fungi is FALSE?

Correct AnswerverifiedShow Answer

Helminthic diseases are usually transmitted to humans by

Correct AnswerverifiedShow Answer

Assume you have isolated a multicellular heterotrophic organism that produces coenocytic hyphae, motile zoospores, and cellulose cell walls. It is most likely a(n)

Correct AnswerverifiedShow Answer

In helminth life cycles, the organism that harbors the sexually reproductive phase of the parasite is called the intermediate host.

Correct AnswerverifiedShow Answer

You see acid- fast oocysts in a fecal sample from a patient who has diarrhea. What is the MOST likely cause?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedA

Which of the following is a nucleated, unicellular organism that, if you changed the incubation temperature, would form filaments with conidiospores?

Correct AnswerverifiedD

Which of the following statements about algae is FALSE?

Correct AnswerverifiedShow Answer

Which of the following statements regarding lichens is FALSE?

Correct AnswerverifiedC

Which of the following pairs is mismatched?

Correct AnswerverifiedShow Answer

Which of the following pairs are mismatched? 1. arthroconidium - formed by fragmentation 2) sporangiospore - formed within hyphae 3) conidiospore - formed in a chain 4) blastoconidium - formed from a bud 5) chlamydoconidium - formed in a sac

Correct AnswerverifiedShow Answer

Which of the following is the most effective control for malaria?

Correct AnswerverifiedShow Answer

Which of the following organisms is photoautotrophic protozoan?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Some species of dinoflagellates produce neurotoxins that cause fish kills and red tides.

Correct AnswerverifiedShow Answer

Arthropod vectors are blood- sucking animals such as ticks, lice, and fleas that transmit microbial pathogens.

Correct AnswerverifiedShow Answer

Which of the following statements about the oomycote algae is FALSE?

Correct AnswerverifiedShow Answer

The life cycle of the fish tapeworm is similar to that of the beef tapeworm. Which of the following is the most effective preventive measure?

Correct AnswerverifiedShow Answer

In the malaria parasite life cycle

Correct AnswerverifiedShow Answer

Which of the following statements regarding protozoa is FALSE?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified
D

Correct Answer
verified

Correct Answer
verified
C

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified