Unit 1: 5.1 Unicellular Eukaryotic Parasites

Question 1

Characteristics of Unicellular Eukaryotic parasites

Answer 1

-trophozites
-cyst
-asexual reproduction (binary fission, budding, schizogony)
-plasmalemma (plasma membrane)
-flagella/cilia
-

Question 2

Trophizites

Answer 2

-during feeding and growing pet of life cycle, feed on bacteria

Question 3

Cyst

Answer 3

A cell with a protective wall

Question 4

Encystment

Answer 4

When a trophozite becomes a cyst

Question 5

Excystment

Answer 5

Environment triggers cysts to become active again

Question 6

Schizgony

Answer 6

Nucleus of cell divides multiple times before the cell divides into smaller cells
-asexual reproduction

Question 7

Syngamy

Answer 7

Haploid gametes that fuse

-sexual reproduction

Question 8

Pellicile

Answer 8

Bands of proteins inside membrane that ass rigidity

Question 9

Ectoplasm

Answer 9

Outer gel layer with micro filaments of actin

Question 10

Endoplasma

Answer 10

Fluid region of cytoplasm

Question 11

Holozoic

Answer 11

Protozoans that ingest whole food particles through phagocytosis

Question 12

Saprozic

Answer 12

Protozoans that ingest small food molecules

Question 13

Pseudopodia

Answer 13

False feet that attach the cell to a surface and allows cytoplasm to flow forward so they can move forward

Question 14

Contractile vacuoles

Answer 14

Move water out of cell for osmotic regulation

Question 15

Protista are what kind of taxonomic group

Answer 15

Polyphyletic

Question 16

Polyphyletic

Answer 16

Do not have a shared evolutionary origin

Question 17

Which super groups contain clinically significant protists?

Answer 17

• Amoeboza
• Excavata
• Chromalveolata

Question 18

Amoebozoa characteristics

Answer 18

• amoeboid movement

- pseudopodia

Question 19

Genus: Entamoeba

Answer 19

• Amoebozoa
• parasitic species
• E. Histolytica
• Acanthamoeba
• Naegleria fowleri

Question 20

E. histolytica causes?

Answer 20

• amoebic dysentery
• transmitted by cysts in feces
• Amoebozoa:Entamoeba

Question 21

Acanthamoeba causes?

Answer 21

• keratitis (corneal inflammation)/blindness

- Amoebozoa:Entamoeba

Question 22

Naegleria fowleri causes?

Answer 22

• brain eating amoeba

- Amoebozoa:Entamoeba

Question 23

Eumycetozoa

Answer 23

• slime molds

- Amoebozoa

Question 24

Chromalveolata

Answer 24

• apicomplexans
• ciliates
• diatoms
• dinoflagellates

Question 25

Apicocomplexans

Answer 25

• intra/extracellular parasites
• apical complex at 1 end of cell that allow them to enter host cells
• life cycle depends on multiple hosts

Question 26

Plasmodium is in what group?

Answer 26

Apicomplexans

Question 27

Cryptosporidium parvum causes?

Answer 27

• epidemic diarrhea by drink water w/ cysts

- Apicomplexans

Question 28

Theileria microti causes?

Answer 28

• recurring fever that can be fatal
• transmitted by a tick
• Apicomplexans

Question 29

Toxoplasma gondii causes?

Answer 29

• toxoplasmosis
• transmitted by cat feces, unwashed fruits/veggies, undercooked meat
• apicomplexans

Question 30

Balantidium coli

Answer 30

Only parasitic ciliate that cause intestinal illness

Question 31

Excavata

Answer 31

• primitive eukaryotes

- parasites with limited metabolic abilities

Question 32

What groups does Excavata have?

Answer 32

• Fornicata (no mitochondria but have flagella)
• Parabasalia
• Euglenozoa

Question 33

Giardia lamblia causes?

Answer 33

• diarrheal illness that is spread through cysts from feces that get into drinking water
• Excavata: fornicata

Question 34

Trichomonas vaginalis causes

Answer 34

• trichomoniasis std

- Excavata:Parabasalia

Question 35

Euglenoza

Answer 35

• photosynthetic and non
• stigma
• trypanosomes

Question 36

T. brucei causes?

Answer 36

• sleeping sickness by tsetse fly

- Excavata:Euglenozoa

Question 37

T.cruzi causes?

Answer 37

• chagas disease

- Excavata: Euglenozoa