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This document contains all the correct answers to exam 3. ALL HIGHLIGHTED ANSWERS ARE THE CORRECT ONES. QUESTIONS MAY BE SHUFFLED DUE TO THE PROFESSOR ON YOUR END.
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Question 1 1 / 1 point A _____ is the protein shell around the nucleic acid core of a virus. capsomere capsid spike envelope none of the choices are correct Question 2 1 / 1 point Ringworm is caused by a Protozoan Archaea Bacteria Fungus All of the above Question 3 1 / 1 point
Which parasite is transmitted by sand flies? Leishmania donovani Toxoplasma gondii Trypanosoma brucei Trypanosoma cruzi Plasmodium falciparum Question 4 1 / 1 point Which of the following leads to the destruction of the host cells? lytic cycle lysogenic cycle temperate phage prophage Question 5 1 / 1 point This protozoan is the only ciliate to cause human diseases Trichomonas vaginalis
Ergosterol Phosphotidylinostitol Question 8 1 / 1 point Which of these infectious agents do not have nucleic acid? viruses prions bacteria viroids Question 9 1 / 1 point The transmission of Entamoeba histolytica takes place by air contaminated food and water the female Anopheline mosquito kissing Question 10 1 / 1 point
Hepatitis D can replicate only inside a cell that is coinfected with hepatitis C hepatitis B hepatitis E hepatitis G hepatitis A Question 11 1 / 1 point Some fungi have two different morphological forms, yeast and molds. If they do, it is likely that: Both forms appear in tissue The mold form appears in the environment, the yeast form in tissue Neither form appears in tissue since these are nonpathogenic organisms The yeast form appears in the environment, the mold form in tissue Question 12 1 / 1 point
Have mycolic acid in their cell walls Have sterols in their cytoplasmic membranes Lack cell walls Question 14 1 / 1 point This sub-species of Trypanosoma brucei is found in Western and Central Africa and causes a slowly developing disease Trypanosoma brucei gambiense Trypanosoma brucei gondii Trypanosoma brucei rhodesiens e Trypanosoma brucei africanis Trypanosoma brucei brucei Question 15 0 / 1 point Why are Ricketsia known as obligate intracellular parasites? They are too small to grow on their own They cannot synthesize their own ATP They cannot attach to the host cells
They need a host cell in order to move All of the above Question 16 1 / 1 point Which is the intermediate host for the causative agent of trypanosomiasis (African Sleeping Sickness.? Tsetse fly Dogs Rodents Human Cattle Question 17 1 / 1 point The schizogony cycle of Plasmodium takes place in liver and red blood cells of man liver of man red blood cells of man alimentary canal of mosquito
Question 20 1 / 1 point This is the only genus of Gram negative cocci known to cause diseases in humans Staphylococcus Streptococcus Neisseria Escherichia Legionella Question 21 1 / 1 point Yeast are ________ and mold are ________. multicellular; unicellular unicellular; multicellular unicellular or multicellular; unicellular unicellular; unicellular multicellular; multicellular Question 22 1 / 1 point
Which of the following genera infects other bacteria? Bdellovibrio Rhizobium Clostridium Caulobacter Question 23 0.75 / 1 point Which of the following viruses can be latent (Choose all that apply) HIV Chickenpox virus Hepatitis B Herpesviruses Question 24 1 / 1 point Identify the following protozoan genus:
Question 26 1 / 1 point This bacterial genus comprises normal inhabitants of the nose and the skin, but is also responsible for pneumonia toxic shock syndrome, food poisoning, and wound infections. Escherichia Lactobacillus Staphylococcus Bacillus Streptococcus Question 27 1 / 1 point Viruses acquire envelopes around their nucleocapsid during penetration assembly adsorption replication release
Question 28 1 / 1 point Place the stages of a lytic replication cycle in order, from earliest to latest stages? Synthesis, Attachment, Entry, Assembly, Release Attachment, Entry, Synthesis, Assembly, Release Synthesis, Assembly, Attachment, Entry, Release Attachment, Assembly, Entry, Synthesis, Release Entry, Attachment, Assembly, Synthesis, Release Question 29 1 / 1 point What is the name of the active form of a protozoan that proliferates in tissues and causes damage? Spore Schizogony Cyst Vector Trophozoïte
Question 32 1 / 1 point The spirochetes include the causative agents for syphilis Lyme disease both syphilis and Lyme disease. neither syphilis nor Lyme disease. Question 33 1 / 1 point The characteristic most notable regarding the mycoplasmas is that they are aerotolerant. produce endospores. carry out fermentative metabolism. lack cell walls. are nonpathogenic. Question 34 1 / 1 point Sexual reproduction in fungi involves
Plasmogamy Karyogamy Meiosis All of the above There is no sexual reproduction in fungi Question 35 1 / 1 point A positive-strand RNA virus: is not recognized by host ribosomes must first be converted to a mRNA before it can be translated. will be degraded by host enzymes. can be used directly to translate viral proteins. Question 36 1 / 1 point What genus of bacteria has been shown to cause stomach ulcers? Helicobacter Escherichia
Pneumocystis pneumonia cutaneous candidiasis mycetomas pulmonary cryptococcosis Question 39 1 / 1 point All of the following are opportunistic fungi, EXCEPT? Cryptococcus neoformans Blastomyces dermatitidis Aspergillus Pneumocytis jiroveci Candida albicans Question 40 1 / 1 point A lysogenic virus Incorporates its nucleic acid with that of the host chromosome Forms plasmids in the host cell
Releases massive numbers of virus all at once Causes host cell to become lytic Kills its host immediately Question 41 1 / 1 point This insect known as the kissing bug transmits what parasite? Trypanosoma brucei Plasmodium falciparium Trypanosoma cruzi Trichomonas vaginalis Giardia lamblia Question 42 1 / 1 point Gametocytes of Plasmodium are formed in
