Microbiology Questions – Flashcards
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| Staphylococcus catalase? |
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| Catalase + |
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| Streptococcus catalase? |
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| Catalase - |
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| Gram positive cocci |
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| Staphylococcus, streptococcus |
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| Gram negative cocci |
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| neisseria |
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| Gram positive bacilli |
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| bacillus, clostridium |
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| Aerobic spore former |
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| Bacillus |
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| Anaerobic spore former |
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| Clostridium |
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| Gram negative Bacilli |
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| Escherichia coli, Salmonella, Shigella, Pseudomonas, Legionella |
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| Oxidase negative |
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| (Gram -) Escherichia coli, Salmonella, Shigella |
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| Oxidase Positive |
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| (Gram -) Pseudomonas, Legionella |
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| Spirochetes |
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| Treponema, Borrelia |
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| Gram negative curved rods |
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| (Oxidase +) Vibrio, Helicobacter, Campylobacter |
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| Acid Fast Positive |
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| Mycobacterium |
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| Lack a cell wall |
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| Mycoplasma |
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| Obligate intracellular pathogens |
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| Rickettsia, Chlamydia |
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| Single stranded DNA |
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| Parvovirus |
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| Double stranded DNA |
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| Poxvirus, Herpesvirus, Adenovirus, Papovavirus, Hepadenavirus |
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| Double stranded RNA |
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| Reovirus |
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| Single stranded RNA (+) |
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| Picornavirus, Coronavirus, Togavirus, Calicivirus, Oncornavirus |
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| Single stranded RNA (-) |
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| Rhabdovirus, Filovirus, Paramyxovirus, Orthomyxovirus, Arenavirus, Bunyavirus |
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| 5' to 3' strand |
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| positive (+) strand |
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| 3' to 5' strand |
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| negative(-) strand |
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| Mycology |
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| study of fungi |
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| Phylum of Fungi |
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| Eumycota |
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| Bread mold class |
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| Zygomycota |
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| Sac fungi class |
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| Ascomycota |
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| Club fungi class |
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| Basidiomycota |
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| Imperfect fungi class |
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| Deuteromycota |
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| Characteristics of fungi |
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| eukaryotic, non-photosynthetic, heterotrophic, microscopic yeast, macroscopic mold, spores, sexual and asexual reproduction, cell walls contain chitin, more beneficial than harmful |
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| What characteristic differentiates fungi from plants? |
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| non- photosynthetic, and chitin in cell walls |
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| Decomposition/ recycling of nutrients |
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| fungi |
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| Antibiotic production |
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| fungi |
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| Hyphae |
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| thread like cells that compose molds, a mass of these are called mycelium |
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| Septate |
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| hyphal elements have cross walls between cells |
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| Aseptate or Coenocytic |
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| lack cross walls in hyphal elements |
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| What is used clinically for identification of fungi? |
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| spores |
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| Perfect fungus |
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| reproduce both sexually and asexually |
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| Perfect fungus |
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| reproduce both sexually and asexually |
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| Imperfect fungus |
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| only able to reproduce asexually |
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| Major selective media for fungus |
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| Sabouraud's agar |
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| Mycoses |
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| fungal disease |
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| Classification of mycoses |
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| superficial, cutaneous, subcutaneous, systemic |
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| Malassezia |
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| tinea versicolor; a superficial infection of the stratum corneum; hypopigmented areas on the skin |
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| Trichophyton |
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| cutaneous mycoses; small pencil shaped spores |
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| Microsporum |
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| cutaneous mycoses; produce large paddle like spores |
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| Epidermophyton |
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| cutaneous mycoses; rounded club shaped spores |
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| Tinea cruris |
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| jock itch, cutaneous mycoses |
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| Tinea pedia |
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| athlete's foot, cutaneous mycoses |
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| Sporothrix |
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| subcutaneous mycoses |
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| Rose cutter disease |
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| subcutaneous mycoses; inflammation and weeping blisters, grandlomatous nodules |
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| Four types of systemic mycoses |
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| Coccidioides, Histoplasma, Blastomyces, Paracoccidiodes |
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| Coccidioides |
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| Southwest USA; Valley fever or desert rheumatism; inhale arthrospores which change to spherules |
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| Histoplasma |
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| Ohio River valley; most prealent pulmonary fungal infection; avian droppings; large tuberculated spores in culture; small oval yeasts in macrophages |
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| Blastomyces |
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| Southeast USA; Mississippi river, Ohio river and St. Lawrence river valleys; thick walled budding yeasts at body temp; North American Blastomycosis |
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| Paracoccidiodes |
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| Central and South America; South American Blastomycosis; large multi budding yeasts |
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| Candida albicans |
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| opportunistic; Candidiasis; "yeast" infections; pseudohyphae and germ tubes in serum |
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| Cryptococcus neoformans |
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| opportunistic; meningitis in AIDS; yeast large capsule seen with India ink; pigeon feces |
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| Aspergillus |
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| opportunistic; mold; severe systemic disease; Aspergillosis |
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| Pneumocystis carinii |
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| opportunistic; respiratory flora; "PCP" pneumocystis carinii pneumonia; AIDS |
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| Ergot poisoning |
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| fungal intoxication; convulsions and hallucinations; LSD |
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| Aspergillus flavus |
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| aflatoxins; grain; damage to liver |
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| Movement of Ciliophora |
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| ciliated |
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| Movement of Sarcomastigophora |
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| pseudophods, flagella or undulating membranes |
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| Movement of apicomplexa |
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| no visible means of mobility |
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| Name of important protozoa in Ciliophora |
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| Balantidium coli |
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| Three types of Apicomplexa |
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| Toxoplasma, Plasmodium, Cryptosporidium |
