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The antibiotics penicillin and cephalosporin are produced by
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What type of fungi are free living organisms?
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Micro#6
Micro#6 Eukaryotic
| Question | Answer |
|---|---|
| The antibiotics penicillin and cephalosporin are produced by | fungi |
| What type of fungi are free living organisms? | heterotrophic |
| Algae that contain agar in their cell walls belong to | Rhodophyta |
| Diatoms, major components of marine phytoplankton belong to | chrysophyta |
| The process by which the nucleus of protozoans undergoes multiple divisions before the cell divides is called | schizogony |
| The eukaryotes known for the presence of macronucleus and a micronucleus are | protozoans |
| Plasmodium is a | slime mold |
| Toxoplasma gondii belongs to which group of eukaryotic organisms | protozoans |
| A scolex is a structure found in and is not a microorganisms? | helminths |
| what is referred to as a pin worm | enterobius vermicularis |
| The study of fungis is called | Mycology |
| The vegetative structure of algae s referred to as a | Thallus |
| The unique cell organelle found among the Archaezoa, which appears to be a remnant of mitochondria is called | Mitosome |
| Masses of protoplasm containing thousands of nuclei are a characteristic of | Plasmodial slime molds |
| The common name for nematodes is | Roundworms |
| Describe the classification of fungi with emphasis on the medically important species | Zygomycota—obligate parasites of insects or other fungi Ascomycota—which produces the antibiotic penicillin Basidiomycota—can cause meningitis Deuteromycota—referred to as imperfect fungi Lichen—a combination of both a fungus and green algae |
| Describe the general characteristics of algae and their life cycles | Algae are photosynthetic and are widespread in fresh and marine waters where they play an essential role in the aquatic food chain; also found in soil, on rocks, and on plants. Algae are capable of both sexual and asexual reproduction. |
| Name and describe parasites protozoans that infect human intestine | Giardia, Cyclospora, Cryptosporidium, Balantidium, Entamoeba |
| Name and describe parasites protozoans that infect human central nervous system | Amoeba Toxoplasma |
| Name and describe parasites protozoans that infect human blood | Trypanosoma and infects blood |
| Name and describe parasites protozoans that infect human skin | Leishmania |
| Name and describe parasites protozoans that infect human liver | Entamoeba |
| Name and describe parasites protozoans that infect human urogenital tract | Trichomonas |
| Describe the fundamental difference between cellular and plasmodial slime molds | Cellular slime molds are eukaryotic cells with one nucleus (resembling an amoeba). Plasmodial slime molds are masses of protoplasm containing many nuclei. |
| Describe the basic structure of cestodes tape worms | have a scolex (head), a neck, and one or more proglottids (body segments). it attaches to the host intestine. The cells of the neck form new segments that elongate |
| Describe the basic life cycle of cestodes tape worms | Mature proglottids contain eggs & are released from the end of the worm, which is released in feces of the host. Eggs attach to vegetation or are released in water. animal ingests the eggs they hatch into larvae, which then invade the intestinal wall. |
| A dimorphic fungus growing as a mold prefers what temperature? | 25° C |
| Conidiospores that bud off from a vase-shaped spore-bearing cell are referred to as | phialospores |
| The mold responsible for the production of penicillin belongs to the subgroup of | Ascomycota |
| The so-called “red tide” is generally caused by which of the following organisms? | Dinoflagellates |
| Brown algae are commonly referred to as | Phaeophyta. |
| Which of the following microorganisms require a moist environment to survive and most often live in ponds, streams, lakes, and oceans? | Protozoan |
| The protozoan that lacks a cyst stage and therefore must be transferred quickly from host to host is | Trichomonas vaginalis |
| Fungi growing on the surface of the skin or hair may cause infections called __________ mycoses. | superficial |
| The fungal saclike structure that contains sporangiospores is called a(n) __________. | sporangium |
| The unique cell organelle found in the Archaezoa and that appears to be a remnant of mitochondria is called a(n) __________. | mitosome |
| Slime molds have both fungal and __________ characteristics. | amoebal |
| Masses of protoplasm containing thousands of nuclei are characteristic of a(n) __________. | plasmodial slime mold plasmodium |
| The life cycle of a parasitic helminth ends with an adult parasite that is found in the __________ host. | definitive |
| Trematodes are commonly called __________. | flukes |
| A collective mass of threadlike hyphae | Mycelium |
| Hyphae that do not contain septa and appear as long, continuous cells with many nuclei | Coenocytic |
| Have a cell wall containing ergosterol | Dimorphic fungi |
| Result of asexual reproduction of fungi | Sporangia |
| Conidiospores that bud from a parent cell | Blastospore |
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