Finals micro for Dr. West class JD
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| Virons are? | Intact noreplicating virus particles.
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| Each of the following is used to classify viruses except | Family - Genenis - Speices - Aliens
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| A bacteriophage is (a) | Bacterial virus.
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| One Virus has a diameter of 0.15 micrometers. This is_____ nanometers | 15
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| Which viral nucleic acid has either a plus or minus strand? | ssRNA
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| The most common polyhedral virus has____triangular surfaces | 20
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| In the viral life cycle, uncoating is the? | Process of removing the capsid and envelope.
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| The methods to count and study bateriophages are based on? | The mode of infecting and destroying host cells.
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| The latent period is when viruses? | Period of no increase.
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| The life cycle of of the temperate phage lambda is? | Phage T4 , Phage is a DNA Complex virus
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| T4 and lambda bacteriophages contain? | dsDNA complex viron
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| RNA-dependant RNA polymerase is needed by? | RNA viruses
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| Plus-strand RNA in an HIV is used exclusively as a template for? | DNA empolying reverse transcription.
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| Of the influenza virus, only types________infect humans | A,B,C,
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| Oconogenes in cells will cause the cells to? | Distort and uncontrolled cancerous growth may result.
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| The TMV infects? | Tobacco plants.
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| If a human body contains 100 trillion cells, the estimated number of bacterial cells using the body is? | 10X/ one quadrillion
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| Select the internal human body structure that does not support a normal biota? | Brain, Heart, Muscle and Bone(correct)
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| Select the internal body structure that does support a normal biota | Mouth, Nose, Vagina,Urethera and Intestinal Tract.
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| Opportunists are microorganisms that? | Cause diease when opportunity arises.
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| A species of bacterium lives on the surface of the human skin. It does not help or harm the human host.However it gains a habitat. This symbiotic relationship is? | Symbiosis
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| By mycrobial antagonism one microbe | Interferes with another microbe
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| In clinical medicine the term "parasite" refers to each of the following except | Protozoa, Worms, Insects, Cowboys
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| The function of epithlium of the human body is to? | Control the size of microbial population.
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| The mucociliary system in the human body is mainly a______ defense. | Mechanical.
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| Adhesions help bacteria to? | Attach to epithilliac surfaces.
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| Staphylococcus speices are? | Facillatative anerobes
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| Select the incorrect statement about the diphtheriods. | Gram positive, commesals, rod shaped,corynebactrium
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| The conjuctiva is a________ membrane | mucous
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| Select the genus with frequent normal biota inhabitants of the nasal cavity. | 90% staph
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| Select the correct statement about the oral cavity. | 80 speices of microbes many are strep.
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| A student plans to study Negri bodies by preparing slides in lab. One source from a mammal would be its | Brains/or probably nerve cells as best answer.
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| Lytic infections affect host cells by? | Lysing it.
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| Streptokinas is used to? | Dissolve clots
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| Ptx directly interferes with the human body's ability to? | Mediate intercellular communication.
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| The ____ is the last part of the urinary tract where urine passes through when eliminated? | Urethera
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| Vitamin K is important to the human body for? | Blood clotting
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| Thrush is an infection of the? | Mouth
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| A Pathogen must have a resevoir in order to | Survive
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| Almost any ________ can be a reservoir for rabies | Animal
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| Influenza is a_____disease of humans? | Respiratory.
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| Rabies attack the _____ system? | Nervous.
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| For a computation of the LD,_______ of 500 animals die from the disease. | Half or in this case 250.
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| The reservoir for Clostridium Tetani is the? | Soil.
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| The portal of entry for Bordetella pertussus is usually the? | Nose.
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| Each of the following is a fomite except? | Anything not living is a fomite, inatimate objects.
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| More human diseases are transmitted by the_______ system than any other system? | Respiratory
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| Most of the primary cases of Herpes simplex virus, type one, are seen in? | small children/ mouth and nose.
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| Coccidiodes immitis is a(n)_____Microorganism? | Airborne/fungal.
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| Praternal transmission occurs by each of the following ways except? | Anything relating to getting in through a "break" in the skin.
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| FHA allows Bordetella pertussis to? | Sticky/stick to.
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| By -1-____ a microbe enters-2-____. | Invasins/host cell
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| In lab, a student studies a prepared slide of plasmodium infecting the tissues of an organism. this slide is probably found in a _______ lab? | Microbiology.
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| Trypanosoma brucei evades the host defenses by______ variation? | Antigenic.
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| If a microbe -1-_____ its B exotoxin subunit, it-2-______? | Attaches/Alters the cellular compartment.
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| Which scientist purified and crystallized the tobacco mosaic virus? | Wendall M Stanley
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| The virus capsid consists of ? | protien
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| The life cycle of the tempratephage lambda is? | Like T4, phage is a DNA complex virus
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| The tail fibers of an animal virus are destroyed. this will directly interfere with the_______ stage of the life cycle. | adsorption
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| Shingles is a disease mainly affecting the? | Skin
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| Select the faculative anerobes normally found in the large intestine | Escherichia coli, Proteus, Entrobacter, Klebsiella
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| A fungus wich is an opportunist living in the vagina, belongs to the ? | Candida albicans
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