Microbiology: chapter 12 Flashcards

Which of the following statements regarding fungi is FALSE?

Which of the following statements about helminths is FALSE?

Which of the following statements about the oomycote algae is FALSE

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

Which of the following statements regarding lichens is FALSE?

Which of the following pairs is mismatched?

In Table 12.1, which is a thick-walled spore formed as a segment within a hypha?

1-Arthroconidium 5-Chlamydoconidium

2-Ascospore 6-Conidiospore

3-Basidiospore 7-Sporangiospore

4-Blastoconidium 8-Zygospore

In Table 12.1, which of these spores are characteristic of Penicillium?

In Table 12.1, which of these spores are characteristic of Rhizopus?

In Table 12.1, which of these spores are asexual spores?

Which of the following pairs is mismatched?

Which of the following statements regarding protozoa is FALSE?

In 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 35C on blood agar. On the same day, a smear was made for Gram staining. The Gram stain showed large (10 m) cells. Brownish, waxy colonies grew on the blood agar. Slide cultures set up on February 1 and incubated at 25C showed septate hyphae and single conidia. The most likely cause of the infection is a

Which of the following tends to be more complex in a parasitic helminth than in free-living helminths

Which of the following statements is FALSE

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

Which of the following pairs is mismatched?

Helminthic diseases are usually transmitted to humans by

All of the following are characteristic of the Platyhelminthes EXCEPT that they

In the malaria parasite life cycle, humans are the ________ host, while mosquitoes are the ________ host as well as the vector.

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 Paragonimuslife cycle,

The encysted larva of the beef tapeworm is called a

Which of the following arthropods does NOT transmit diseases by sucking blood from a human host

Which of the following statements about algae is FALSE?

Below are paired items referring to the heartworm Dirofilaria immitis. Which of the pairs is mismatched

All of the following are characteristic of algae EXCEPT which ONE of the following

A definitive host harbors which stage of a parasite

What do tapeworms eat

Giardia and Trichomonas are unusual eukaryotes because they

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?

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

In the microscope, you observe multinucleated amoeboid cells with sporangia that form spores. This is a(n)

You observe a mass of amoeba-like cells that swarm together, form a stalk, and produce spores. This is a(n)

Which of the following pairs is mismatched?

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

Which of the following organisms is photoautotrophic protozoan?

Which of the following pairs is mismatched

Which of the following groups of algae does NOT produce compounds that are toxic to humans

The cells of plasmodial slime molds can grow to several centimeters in diameter because

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

If a larva of Echinococcus granulosus is found in humans, humans are the

Ringworm is caused by a(n)

Yeast infections are caused by

All of the following are characteristic of lichens EXCEPT

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