Week 7, Fungi & Paracite

Question 1

Fungi

Answer 1

1. Unicellular : yeast
2. Multicellular: molds, mushrooms ( made up of filaments called hyphae)

Question 2

Valley Fever

Answer 2

1. From inhaling fungal spores
2. Southwestern US, Arizona, 2/3 of cases
3. Flu-like symptoms, can lead to chronic lung disease

Question 3

Titan cells

Answer 3

1. Big cell walls & capsule formation
2. Resist phagocytosis & survive within host macrophage

Question 4

Cryptococcus

Answer 4

HIV defining pulmonary illness, production of titan cells

Question 5

Parasites

Answer 5

Eukaryotic species that live on or in a host for food

Question 6

Protozoa

Answer 6

1. Single cell organism
2. Fecal-oral & through vector transmission

Question 7

Toxoplasmosis

Answer 7

Cat litter&raquo_space; soil»contaminated vege /water&raquo_space; pregnant woman &raquo_space; to fetus

Question 8

Helminths

Answer 8

1. Among largest parasites
2. Life cycle: direct transmission, vector mediation, ingestion by host
3. DO NOT replicate within human host
4. Examples : roundworm, flatware, whip worm, tapeworm.

Question 9

Life cycle of parasites (Ascaris)

Answer 9

1. Human injests contaminated (vege, water, soil) eggs containing food.
2. Hatches inside body
3. Penetrate intestinal wall and enters blood stream
4. Some goes to heart, liver
5. Some coughed up and swallowed again
6. Goes to GI tract
7. Maturation
8. Poop out again and cycle starts again

Question 10

Ectoparasites

Answer 10

Parasites that live on the outside of the host. Ex. Bed bug, lice, scabies

Question 11

Alpha -gal syndrome

Answer 11

1. A lone-star tick triggers allergy to meat
2. Symptoms appear after 4-6hours, hard to pinpoint
3. Diagnosis from antibody detction