LEC 3 Amoeba

Question 1

Major reservoir host of E. histolytica

Answer 1

Humans

Question 2

Pseudopod forming non-flagellated protozoan parasite

Answer 2

E. histolytica

Question 3

Centrally (or near central) located small karyosome

Answer 3

E. histolytica

Question 4

Formation of your trophozoites, from cyst to trophozoites

Answer 4

Excystation

Question 5

Formation of trophozoites to cysts

Answer 5

Encystation

Question 6

Have the ability to colonize or invade the large bowel

Answer 6

E. histolytica trophozoite

Question 7

E. histolytica trophozoites multiply by?

Answer 7

Binary fission

Question 8

Has the presence of quadrinucleate cysts

Answer 8

E. histolytica cysts

Question 9

Gradual onset of abdominal pain, diarrhea with or without blood, mucus in stool

Answer 9

Amebic colitis

Question 10

Redness and swelling of the lining of your belly or abdomen

Answer 10

Peritonitis

Question 11

Caused by an infection from a hole in the bowel or a burst appendix

Answer 11

Peritonitis/Peritoneum

Question 12

Most common extra-intestinal form of amebiasis

Answer 12

Amebic Liver Abscess

Question 13

Diagnostic feature of E. histolytica

Answer 13

Ingested RBC

Question 14

Stool culture use in E. histolytica

Answer 14

Robinson’s and Inoki medium

Question 15

Can detect antibodies of past infection as long as 10 years ago

Answer 15

Indirect Hemagglutination

Question 16

Size of E. histolytica trophozoite

Answer 16

12-60um

Question 17

Large, irregularly-shaped karyosome anchored to the nucleus by achromatic fibrils

Answer 17

Endolimax

Question 18

Large, chromatin-roch karyosome surrounded by a layer of achromatic globules

Answer 18

Iodamoeba

Question 19

First detected in sewage

Answer 19

E. moshkovskii

Question 20

Osmotolerant, able to grow ate room temperature (25-30C)

Answer 20

E. moshkovskii

Question 21

E. moshkovskii can survive in temperature ranging?

Answer 21

0-41C

Question 22

Size of E. hartmanni trophozoite

Answer 22

3 to 12 um

Question 23

Does not ingest RBC

Answer 23

E. hartmanni

Question 24

Have rod-shaped chromatoid material with rounded or squared ends

Answer 24

E. hartmanni

Question 25

More vacuoated or granular endoplasm with bacteria and debris, but no RBC

Answer 25

E. coli