Quiz
Ch. 12
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Questions in this quiz (38)
1In the table, which of these spores are characteristic of Penicillium?
- A1 and 2
- B4 and 6
- C2 and 6
- D1 and 4
- E3 and 4
2Which of the following is a nucleated, unicellular organism that, if you changed the incubation temperature, would form filaments with conidiospores?
- Aascomycete
- Bplasmodial slime mold
- Ceuglenozoa
- Dcellular slime mold
- Etapeworm
3Which of the following statements regarding fungi is FALSE?
- AFungi are eukaryotic heterotrophs.
- BFungi tolerate low moisture conditions.
- CMost fungi grow well in acidic culture condition.
- DFungi reproduce by forming asexual or sexual spores.
- EMost fungi are pathogenic for humans.
4Which of the following statements is FALSE?
- AFungi produce sexual spores.
- BFungal spores are for asexual or sexual reproduction.
- CFungi produce asexual spores.
- DFungal spores are used in identification of fungi.
- EFungal spores are highly resistant to heat and chemical agents.
5Which of the following pairs is mismatched?
- Adermatomycosis fungal infection of the skin
- Bcoenocytic hyphae hyphae with cross-walls
- Cdimorphic fungus grows as a yeast or a mold
- Dteleomorph produces both sexual and asexual spores
- Esystemic mycosis fungal infection of body organs
6In mid-December, a woman with insulin-dependent diabetes who had been on prednisone fell and received an abrasion on the dorsal side of her right hand. She was placed on penicillin. By the end of January, the ulcer had not healed, and she was referred to a plastic surgeon. On January 30, a swab of the wound was cultured at 35°C on blood agar. On the same day, a smear was made for Gram staining. The Gram stain showed large (10 µm) cells. Brownish, waxy colonies grew on the blood agar. Slide cultures set up on February 1 and incubated at 25°C showed septate hyphae and single conidia. The most likely cause of the infection is a
- Agram-negative bacterium.
- Byeast
- Cdimorphic fungus.
- Dparasitic alga.
- Eprotozoan.
7Ringworm is caused by a(n)
- Afungus
- Bcestode
- Cnematode
- Dprotozoan.
- Etrematode.
8Seventeen 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
- Acannot tolerate high osmotic pressure.
- Bprefer a neutral environment (pH 7).
- Care aerobic.
- Dcan tolerate low-moisture conditions.
- Ehave a fermentative metabolism.
9Yeast infections are caused by
- APenicillium
- BCandida albicans.
- CHistoplasma
- DSaccharomyces cerevisiae.
- EAspergillus
10Plasmogamy, karyogamy, and meiosis are stages of the fungal sexual life cycle.
- ATrue
- BFalse
11All of the following are characteristic of lichens EXCEPT
- Athey are arranged in foliose, fruticose, or crustose morphologies.
- Bthey are a major food source for tundra herbivores.
- Cthey are used as indicators of air pollution.
- Dthey serve as primary producers in rocky ecosystems.
- Ethey are a symbiotic relationship of a fungus and a protozoan.
12Which of the following statements regarding lichens is FALSE?
- AThe fungal partner provides a means of attachment and protects the algal partner from desiccation.
- BLichens represent a mutualistic relationship between a fungus and an alga.
- CLichens are very tolerant to pollution.
- DLichens are often the first life form to colonize rock or soil.
- EThe algal partner produces carbohydrates that are absorbed by the fungal partner.
13Which of the following pairs is mismatched?
- Agreen algae – prokaryotic
- Bbrown algae – algin
- Cred algae – agar
- Ddinoflagellates – paralytic shellfish poisoning
- Ediatoms – petroleum
14All of the following are characteristic of algae EXCEPT
- Athey may be unicellular or multicellular.
- Bmost are photoautotrophs.
- Cthey mostly live in aquatic habitats.
- Dsome produce harmful toxins.
- Ethey are classified as plants.
15Which of the following statements about algae is FALSE?
- AThey produce oxygen from hydrolysis of water.
- BThey use CO2 as their carbon source.
- CAll are unicellular.
- DSome are capable of sexual reproduction.
- EThey use light as their energy source.
16Some species of dinoflagellates produce neurotoxins that cause fish kills and red tides.
- ATrue
- BFalse
17Which of the following is the most effective control for malaria?
- Atreating patients
- Beliminate Anopheles
- Cvaccination
- Deliminate the intermediate host
- ENone of these is an effective control.
18None of these is an effective control.
- ATrue
- BFalse
19Which of the following statements regarding protozoa is FALSE?
- ASome protozoan pathogens are transmitted by arthropod vectors.
- BMost protozoa reproduce asexually.
- CNearly all protozoa cause disease.
- DProtozoa are common in water and soil.
- EProtozoa are unicellular eukaryotes.
20Giardia and Trichomonas are unusual eukaryotes because they
- Alack nuclei.
- Bare motile.
- Cdo produce cysts.
- Dlack mitochondria.
- Edo not produce cysts.
21You observe a mass of amboeba-like cells that swarm together, form a stalk, and produce spores. This is a(n)
- Aascomycete.
- Bcellular slime mold.
- Cplasmodial slime mold.
- Dtapeworm
- EEuglenozoa.
22Both the cellular slime molds and the plasmodial slime molds are members of the phylum Amoebozoa.
- ATrue
- BFalse
23The cells of plasmodial slime molds can grow to several centimeters in diameter because
- Athey distribute nutrients by cytoplasmic streaming.
- Bthey form spores.
- Cthey have organelles.
- Dthe large surface can absorb nutrients.
- Ethey have a mouth to ingest nutrients.
24Which of the following pairs is mismatched?
- Acestodes all are free-living
- Bnematodes complete digestive tract
- Cnematodes many are free-living
- Dtrematodes flukes
- Ecestodes segmented body made of proglottids
25In helminth life cycles, the organism that harbors the sexually reproductive phase of the parasite is called the intermediate host.
- ATrue
- BFalse
26Which of the following statements about helminths is FALSE?
- AThey have eukaryotic cells.
- BThey are multicellular animals.
- CAll are parasites.
- DSome have male and female reproductive organs in one animal.
- EThey are heterotrophic.
27A definitive host harbors which stage of a parasite?
- Acyst
- Badult
- Cmiracidium
- Dlarva
- EAll of the answers are correct.
28Most cases of hookworm infection are acquired by ingestion of eggs in contaminated food or water.
- ATrue
- BFalse
29The Platyhelminthes group includes roundworms, tapeworms, and flukes.
- ATrue
- BFalse
30What do tapeworms eat?
- Ahost tissues
- Bintestinal bacteria
- Cplant matter
- Dred blood cells
- Eintestinal contents
31Three 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,
- Ahumans are the definitive host and crayfish are the intermediate host.
- Bthe source of the infection was the river water.
- Cboth humans and crayfish are intermediate hosts.
- Dboth humans and crayfish are definitive hosts.
- Ethe crayfish are the definitive host and humans are the intermediate host.
32Helminthic diseases are usually transmitted to humans by
- Arespiratory route.
- Bvectors.
- Cgastrointestinal route.
- Dgenitourinary route.
- Eaerosols
33The life cycle of the fish tapeworm is similar to that of the beef tapeworm. Which of the following is the most effective preventive measure?
- Anot swimming in fish-infested waters
- Bwearing gloves while handling fish
- Crefrigerating stored fish
- Dsalting fish before eating
- Ecooking fish before eating
34The insect vectors have six legs and include ticks, mosquitoes, and lice.
- ATrue
- BFalse
35In the malaria parasite life cycle
- Ahumans are the intermediate host.
- Bmosquitoes are the definitive host.
- Cmosquitoes are the vector.
- Dhumans are the intermediate host and mosquitos are the definitive host.
- Ehumans are the intermediate host and mosquitoes are both the definitive host and the vector.
36Which of the following pairs is mismatched?
- Amosquito – encephalitis
- Btick – Rocky Mountain spotted fever
- Cmosquito – malaria
- Dmosquito – Pneumocystis
- Etick – Lyme disease
37Which of the following arthropods does NOT transmit diseases by sucking blood from a human host?
- Alice
- Bdeer flies
- Chouseflies
- Dfleas
- Emosquitoes
38Arthropod vectors are blood-sucking animals such as ticks, lice, and fleas that transmit microbial pathogens.
- ATrue
- BFalse
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- Quiz on Ch. 12, created by john magpusao on 21/03/2017.
- Author
- john magpusao
- Language
- English
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- Created on 21 Mar 2017 · updated on 21 Mar 2017
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