2014 micro Flashcards
Which individuals have a higher risk of getting acute cryptosporidium? A) person with abdominal surgery B) men older than 65 years C) children less than 10 years D) immunocompromised patients
D) immunocompromised patients
what differentiates gram-positive bacteria from gram-negative bacteria?
A) peptidoglycan
B) periplasmic space
B) periplasmic space
What is linked with shock in a patient with E.coli? A) Fimbria B) Lipase A C) Pilli D) Protein A
B) Lipase A
What substance in the cell wall of mycobacterium tuberculosis confers resistance to gram stain?
A) Mycolic acid
B) Peptidoglycan
C) Phospholipid bilayer
A) mycolic acid
What is characterized by pain on eating and drinking, bleeding from gums, high fever, and extensive ulceration in the tongue, palate and buccal area? A) keratitis B) primary herpetic gingivostomatitis C) herpes labialis D) Eczema herpeticum
B) primary herpetic gingivostomatitis
Hemophilus influenza needs X & V factors, what agar provides these?
A) blood agar
B) MacConkey agar
C) chocolate agar
C) chocolate agar
What mediates the attachment of Neisseria gonorrhea to the mucosal surface of the endocervix?
A) flagella
B) fimbriae
C) type IV pilus
B) fimbriae
Which statement describes epidemic infection?
A) appears suddenly and persist for a period of time
B) appears slowly and fades with time
A) appears suddenly and persist for a period of time
Which of the following viruses causes latent infection in neurons?
A) adenovirus
B) herpesvirus
C) CMV
B) herpesvirus
which of the following is a characteristic feature of chronic hepatitis B infection?
A) most patients are symptomatic
B) most patients have B surface antibody in their sera (serum)
C) most patients have e antibody in their sera
D) most patients have B surface antigen in their sera (serum)
D) most patients have B surface antigen in their sera (serum)
what enables Neisseria gonorrhea to resist intracellular killing by phagocytosis?
A) Catalase
B) Outer membrane proteins
C) Polysaccharide capsule
A) Catalase
What characterizes Mycoplasma?
A) Lack of cell wall
B) Lack of plasma membrane
A) Lack of cell wall
what is the most appropriate next step after a needle prick from a patient who tested positive in HIV-I?
A) request HIV testing of the blood
B) immediately begin post exposure prophylaxis
C) perform a confirmatory test by western blot
D) tell the patient that he is likely to develop AIDS
B) immediately begin post exposure prophylaxis
Which of the following is transmitted through contaminated water?
A) hepatitis A virus
B) hepatitis G virus
C) hepatitis B virus
A) hepatitis A virus
what are the carriers of Brucella melitensis? A) cows B) goats C) dogs D) pigs
B) goats
human T-cell leukemia virus Type II (HTLV-II) is associated with?
A) adult T-cell leukemia (ATL)
B) tropical spastic paraparesis (TSP)
C) neurological disorder called (HAM) HTLV associated myelopathy
D) atypical hairy cell leukemia (HCL)
D) atypical hairy cell leukemia (HCL)
Which of the following virulence factors of mycobacterium tuberculosis aid in the formation of tubercule?
A) Mycolic acid
B) Intracellular growth
C) Antigen 85 complex
C) Antigen 85 complex
which of the following determines resistance against vivax malaria infection? A) G6P dehydrogenase deficiency B) Negative RH blood group antigen C) Duffy blood group antigen D) Sickle cell disease
C) Duffy blood group antigen
what's the method of choice to confirm invasive amebic infection? A) microscopy of stool smear B) stool culture C) blood culture D) serology
D) serology
how can we get infected by schistosomiasis?
A) Skin penetration
B) Fecal oral route
A) Skin penetration
What is the route of transmission of (cutaneous) leishmaniosis?
A) direct contact
B) sand fly
B) sand fly
What is true about Corynebacterium diphtheria?
Toxin-mediated disease
What is the best way to diagnose a cyst in the right lobe of the liver (or What is the best choice for diagnosing hydatid disease)?
A) Aspirate and culture
B) Serology for specific antibodies
C) Surgery
B) Serology for specific antibodies
What is the method used to diagnose pinworms (Entrobius vermicularis)?
A) Detection of antibody in the blood
B) Detection of eggs in the stool
C) Detection of eggs using sellotape
C) Detection of eggs using sellotape
Which of the following is a risk factor for acquiring pneumonia if a person is infected with pseudomonas?
A) Using IV drugs
B) Cystic fibrosis
B) Cystic fibrosis
Which of the following strains of malaria have developed resistance to malarial antibiotics recently?
A) Plasmodium ovale
B) Plasmodium vivax
C) Plasmodium falciparum
C) Plasmodium falciparum
What is true about Kaposi sarcoma HHV8?
A) a cancer that develops from the cells that line lymph or blood vessels
B) a cancer that develps from connective tissue
A) a cancer that develops from the cells that line lymph or blood vessels
What differentiates between clostridium tetanus from clostridium perfringens?
A) Lack motility
B) produce neurotoxin
B) produce neurotoxin
C. perfringens is nonmotile and does not use neurotoxins, while C. tetani is motile and uses neurotoxins
What is the virulence factor of streptococcus pneumonia?
A) Motility
B) Capsule
B) Capsule
Corynebacterium diphtheriae which causes Diphtheria can be prevented via
DPT vaccine
What bacteria is found permanently on the skin?
Staphylococcus
Which of the following characterize pseudomonas aeruginosa?
A) Diffusible pigment
B) non-motile
A) Diffusible pigment
What is the causative agent of melioidosis?
A) Burkholderia mallei
B) Burkholderia pseudomallei
C) Burkholderia cepacia
B) Burkholderia pseudomallei
Which of these genera represent mucolaris? A) penicilium B) Candida C) Cryptococcus D) Rhizopus
D) Rhizopus
Which of the following about exanthem subitum is true?
A) The disease only occurs in people > 40
B) the disease is also called roseola infantum
C) it is caused by human herpesvirus 8
D) antiviral drugs are recommended to treat it
B) the disease is also called roseola infantum
What is most associated with meningitis (or the commonest cause of fungal meningitis)?
A) Aspergillus flavus
B) Cryptococcus neoforamans
C)talaromyces marneffei
B) Cryptococcus neoforamans
which of the following is virus transmitted through mosquito?
A) hantavirus
B) dengue virus
C) kyasanur forest virus
B) dengue virus
Which of the following is a characteristic of dermatophytes?
produce keratinase
Which of the following bacterial pathogens cause urethral discharge and cannot be visualized?
chlamydia trachomatis
Which of the following fungal infections is transmitted through animals? (primary parasitic on animals)? A) Candida albicans B) Microsporum canis C) Aspergillus D)pneumocystis jirovecii
B) Microsporum canis
Which of the following causes oropharyngeal candidiasis?
Candida Albicans
What is a causative agent of dermatophytosis?
Trichophyton
Which of the following viruses causes hemorrhagic fever?
Marburg
Which of the following is true about hand, foot, and mouth diseases?
A) Caused by coxsackie B and echovirus
B) Spread through direct contact with mucus and saliva of an infected individual
C) Does not affect kids
B) Spread through direct contact with mucus and saliva of an infected individual
A philipino came to the emergency room with fever, headache, and pink papules on the skin. What is likely the cause of these symptoms?
Salmonella typhi
What enzyme do anaerobic bacteria lack?
Superoxide dismutase
Which is a characteristic of the cell wall of fungi?
Glucan
