Protozoa: Amoeba Flashcards

1
Q

Acanthamoeba species (Trophozoite)

A

sluggish motility
spine-like pseudopods
Nucleus: PC absent, large karyosome
Cytoplasm: granular and vacuolated

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2
Q

Acanthamoeba Species (Cyst)

A

Nucleus: 1, PC absent, large central karyosome
Cytoplasm: granular, vacuolated.
Double cell wall

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3
Q

Naegleria Fowleri (Trophozoite)

A

Sluggish motility
Blunt pseudopods
Nucleus: PC absent, large centered karyosome
Cytoplasm: Granular, vacuolated

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4
Q

Naegleria fowleri (Cyst)

A

NONE!!

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5
Q

Entamoeba histolytica (Troph)

A

progressive, rapid motility
Nucleus: Fine even PC (peripheral chromatin), Central karyosome
Cytoplasm: clean appearance.
RBC inclusions are DIAGNOSTIC.

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6
Q

Entamoeba histolytica (cyst)

A

Nucleus: 4. PC fine, even. Karyosome centered
Cytoplasm: chromatoid bar that are cigar shaped

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7
Q

Entamoeba coli (troph)

A

sluggish, nondirectional
Nucleus: Clumped, uneven PC. Karyosome off to one side
Cytoplasm: dirty, may include bacteria, yeast, or debris

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8
Q

Entamoeba coli (cyst)

A

Nucleus: 8. clumped, uneven PC. eccentric Karyosome
Cytoplasm: chromatid bars, splinter shaped.

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9
Q

Entamoeba hartmanni (troph)

A

nonprogressive motility
nucleus: fine evn PC, central karyosome
Cytoplasm: clean appearance. bacteria can be included. NO RBCs

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10
Q

Entamoeba hartmanni (Cyst)

A

Nucleus: 4. fine, even PC. central K
Cytoplasm: chromatid bars are cigar shaped

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11
Q

Endolimax nana (troph)

A

sluggish
nonprogressive
Nucleus: PC absent, large irregular, blotliike karyosome
cytoplasm: granular, vacuolated, may have bacteria

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12
Q

Endolimax nana (Cyst)

A

Nucleus: 4. absent PC. large irregular blotlike karyosome
cytoplasm: granular, vacuolated

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13
Q

Iodamoeba butschlii (troph)

A

sluggish, nonprogressive
Nucleus: PC absent, large eccentric karyosome. achromatic granules
Cytoplasm: coarsely granular
vacuolated, bacteria, yeast, and debris present

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14
Q

Iodamoeba butschlii (Cyst)

A

Nucleus:1. absent PC, enlarged eccentric karyosome, achromatic granules
Cytoplasm: large glycogen vacuole

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15
Q

Blastocystis hominis (troph)

A

NONE!

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16
Q

Blastocystis hominis (Cyst)

A

Nucleus: 2-6 around perimeter
Cytoplasm: ring around periphery of vacuole.
90% of cyst is vacuole