Fungi and Parasite Intro

Question 1

Unicellular fungi:

multicellular colonies:

Answer 1

Yeast –>reproduce through budding

Mold–>reproduce through spores

Question 2

threadlike branching , cylindrical tubules, fungal growth. _________ when buds don’t separate

Answer 2

Hyphae,

pseudohyphae

Question 3

Can grow as either yeast or mold depending on environment

Answer 3

dimorphic fungi

Question 4

drugs that bind to ergosterol and punch holes in fungal CELL MEMBRANE

Answer 4

amphotericin B &

nystatin

Question 5

-azole

Answer 5

topical antifungal

Question 6

essential sterol in fungi

Answer 6

ergosterol

Question 7

innermost layer around cytoplasm–conatins sterols

Answer 7

Cell Membrane

Question 8

surrounds cell membrane–mostly carb and proteins

Answer 8

Cell Wall–antigenic to humans

Question 9

polysaccarides coating surround cell wall

Answer 9

capsule

Question 10

Catagorzation by skin depth (4)

Answer 10

1. superficial
2. cutaneous (skin, hair, nails)
3. subcutaneous (in soil–gain entrance through skin trauma)
4. systemic (dimorphic–inhaled spores–may cause pneumonia)

Question 11

oral candidiasis aka

Answer 11

thrush (babies normal)

Question 12

ringworm aka

Answer 12

tinea corporis

Question 13

nail fungus

Answer 13

tinea unguium

Question 14

Parasites:

• unicellular
• multicellular

Answer 14

-protozoa
-helminths, insects, arachnids
(sexual and asexual forms)

Question 15

Malaria–> liver

Answer 15

Plasmodium–4 species

• sexual phase in mosquito
• asexual phase in humans

Question 16

most widely distributed malaria

Answer 16

Plasmodium vivax

Question 17

Malaria symp progression

Answer 17

1. Hot–destruction of RBCs
2. Cold–
3. Wet

Question 18

kitty litter and pregnant women

Answer 18

Toxoplasmosis–uncooked meat and cat feces (from rodents)

Question 19

Flask-like ULCERS, traveler’s diarrhea (bloody), liver abseses

Answer 19

Amebiasis

Question 20

profuse watery “greasy” diarrhea, cysts or trophozoites (in stool)

Answer 20

Giardiasis–Stool study or blood test

Question 21

EXPLOSIVE profuse watery diarrhea 1-2 weeks post exposure, fecal-oral

Answer 21

Cryptosporidium–stool studies, acid-fast

Question 22

Parasitic worms:
Round worms:
Flat worms:

Answer 22

Helminths:
nematodes
platyhelminthes

Question 23

worm more common in tropical climates, matures in soil,

Answer 23

Whipworm–trichuris trichiura–stool test for eggs

Question 24

Pinworm–famales transmit eggs to anus at night–anal itching

Answer 24

Enterobius vermicularis–dx anal cellophane tape detects ova

Question 25

eggs mature in soil, penetrate skin, larva to gut, tropical areas, anemia,

Answer 25

Hookworm–dx eggs

Question 26

parasite inhabit PORTAL VASCULAR SYSTEM

Answer 26

Schistosoma– symp: abdominal pain, diarrhea, hepatomegaly, hematuria

Question 27

eggs released into water, eggs in stool, Viatmin B12 deficiency

Answer 27

Fish Tapeworm–Diphyllobothrium Latum