Lec 2-4 - Parasitology

Question 1

2 parasites in the oral cavity

Answer 1

entamoeba gingivalis, trichomonas tenax

Question 2

oral amoebiasis is an infection of the oral cavity with blank… causes periodontitis and gingivitis

Answer 2

E. gingivalis

Question 3

E. gingivalis is not seriously pathogenic but can maintain a stage of blank and allow the growth of blank

Answer 3

chronic irritation, other pathogens

Question 4

tiny flagellate that is a commensal but can take part in the first phases of periodontal tissue destruction

Answer 4

trichomonas tenax

Question 5

virulence factor of trichomonas tenax

Answer 5

acid phosphatase

Question 6

cause of malaria

Answer 6

plasmodium

Question 7

most deadly malaria species

Answer 7

plasmodium falciparum

Question 8

transmission of malaria is via

Answer 8

anopheles (female mosquitos)

Question 9

flu like symptoms from malaria run in blank that are timed with bursting open of rbc which releases debris

Answer 9

cycles

Question 10

malaria that doesnt show periods of cycles

Answer 10

falciparum

Question 11

falciparum is the most severe malaria because it can infect blank

Answer 11

red blood cells of all ages

Question 12

falciparum goes through blank of infected rbc via cytoadherence and rosetting

Answer 12

sequestration

Question 13

attachment to receptors on venular and capillary endothelia

Answer 13

cytoadherence

Question 14

clumping of infected rbc with uninfected rbcs which leads to anoxia

Answer 14

rosetting

Question 15

variant surface antigens of falciparum

Answer 15

PfEMP1 proteins

Question 16

PfEMP1 proteins are present in knob structures on parasitized blank surface

Answer 16

rbc

Question 17

falciparum does not cause malaria blank

Answer 17

relapses

Question 18

malaria types that cause relapses

Answer 18

p. vivax, p. ovale

Question 19

these are found in many people throughout the world and are transmitted via fecal-oral, contaminated meat, trans placental

Answer 19

toxoplasma gondii

Question 20

sexual reproduction of toxoplasma happens only in blank

Answer 20

cats

Question 21

life cycle of toxoplasmas

Answer 21

tachyzoites, zoitocysts, bradyzoites

Question 22

toxoplasma are not a really big deal unless you are blank

Answer 22

immunocompromised or pregnant

Question 23

prevention of toxoplasma by

Answer 23

stay away from cats and litter, wash hands after soil contact like gardening

Question 24

toxoplasma secretes kinases and phosphatases into host cell and messes with blank

Answer 24

transcription

Question 25

most virulent toxoplasma

Answer 25

type 1

Question 26

toxoplasma blank kinase from type 1 that is active and activates blank which is a host transcription factor

Answer 26

rop16, stat6

Question 27

toxoplasma can be treated similarly to malaria but must be taken blank

Answer 27

for life