front 1 Which of the following statements regarding fungi is FALSE? | back 1 Most fungi are pathogenic for humans. |
front 2 Which of the following statements about helminths is FALSE? | back 2 All are parasites. |
front 3 Which of the following statements about the oomycote algae is FALSE | back 3 They have chlorophyll. |
front 4 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 | back 4 can tolerate low-moisture conditions |
front 5 Which of the following statements regarding lichens is FALSE? | back 5 Lichens are a mutualistic relationship between a fungus and a protozoan |
front 6 Which of the following pairs is mismatched? | back 6 anamorphs lack spores |
front 7 In Table 12.1, which is a thick-walled spore formed as a segment within a hypha? | back 7 5 |
front 8 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? | back 8 2 and 6 |
front 9 In Table 12.1, which of these spores are characteristic of Rhizopus? | back 9 7 and 8 |
front 10 In Table 12.1, which of these spores are asexual spores? | back 10 1 4 5 6 7 |
front 11 Which of the following pairs is mismatched? | back 11 coenocytic hyphae hyphae with cross-walls |
front 12 Which of the following statements regarding protozoa is FALSE? | back 12 Nearly all protozoa cause disease. |
front 13 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 | back 13 dimorphic fungus. |
front 14 Which of the following tends to be more complex in a parasitic helminth than in free-living helminths | back 14 reproductive system |
front 15 Which of the following statements is FALSE | back 15 Fungal spores are highly resistant to heat and chemical agents. |
front 16 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 | back 16 2 and 5 |
front 17 Which of the following pairs is mismatched? | back 17 green algae prokaryotic |
front 18 Helminthic diseases are usually transmitted to humans by | back 18 gastrointestinal route. |
front 19 All of the following are characteristic of the Platyhelminthes EXCEPT that they | back 19 have highly developed digestive and nervous systems |
front 20 In the malaria parasite life cycle, humans are the ________ host, while mosquitoes are the ________ host as well as the vector. | back 20 intermediate; definitive |
front 21 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, | back 21 humans are the definitive host and crayfish are the intermediate host. |
front 22 The encysted larva of the beef tapeworm is called a | back 22 cysticercus. |
front 23 Which of the following arthropods does NOT transmit diseases by sucking blood from a human host | back 23 houseflies |
front 24 Which of the following statements about algae is FALSE? | back 24 All are unicellular. |
front 25 Below are paired items referring to the heartworm Dirofilaria immitis. Which of the pairs is mismatched | back 25 mosquito definitive host |
front 26 All of the following are characteristic of algae EXCEPT which ONE of the following | back 26 They are currently classified as plants. |
front 27 A definitive host harbors which stage of a parasite | back 27 adult |
front 28 What do tapeworms eat | back 28 intestinal contents |
front 29 Giardia and Trichomonas are unusual eukaryotes because they | back 29 lack mitochondria. |
front 30 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? | back 30 cooking fish before eating |
front 31 Which of the following is the most effective control for malaria? | back 31 eliminate Anopheles mosquitoes |
front 32 In the microscope, you observe multinucleated amoeboid cells with sporangia that form spores. This is a(n) | back 32 plasmodial slime mold. |
front 33 You observe a mass of amoeba-like cells that swarm together, form a stalk, and produce spores. This is a(n) | back 33 cellular slime mold. |
front 34 Which of the following pairs is mismatched? | back 34 cestodes all are free-living |
front 35 Which of the following is a nucleated, unicellular organism that, if you changed the incubation temperature, would form filaments with conidiospores? | back 35 ascomycete |
front 36 Which of the following organisms is photoautotrophic protozoan? | back 36 Euglena |
front 37 Which of the following pairs is mismatched | back 37 mosquito Pneumocystis |
front 38 Which of the following groups of algae does NOT produce compounds that are toxic to humans | back 38 green algae |
front 39 The cells of plasmodial slime molds can grow to several centimeters in diameter because | back 39 they distribute nutrients by cytoplasmic streaming. |
front 40 Assume you have isolated a multicellular heterotrophic organism that produces coenocytic hyphae, motile zoospores, and cellulose cell walls. It is most likely a(n) | back 40 oomycote alga. |
front 41 If a larva of Echinococcus granulosus is found in humans, humans are the | back 41 intermediate host |
front 42 Ringworm is caused by a(n) | back 42 fungus. |
front 43 Yeast infections are caused by | back 43 Candida albicans. |
front 44 All of the following are characteristic of lichens EXCEPT | back 44 they are a symbiotic relationship between a fungus and a protozoan |
front 45 You see acid-fast oocysts in a fecal sample from a patient who has diarrhea. What is the MOST likely cause? | back 45 Cryptosporidium |