Eukaryotic Microbes Flashcards
(43 cards)
1
Q
Fungi
A
- Nonphotosynthetic
- Cell wall made up of CHITIN
2
Q
Mycorrhize
A
-increases surface area for absorption of water and minerals
3
Q
Yeasts
A
-single cells
4
Q
Molds
A
-Filamentous
5
Q
Hyphae/Septate/Aseptate
A
-Septa prevent movement of nuclei and other large structures on molds
6
Q
Dimorphic
A
-2 forms (yeast/mold) depending on temp
7
Q
Conidia
A
-Spores free on the ends/tips of fungi
8
Q
Aspergillus
A
- Afro spores
- Asexual spores
9
Q
Penicilluim
A
- Finger like spores
- Asexual spores
10
Q
Sporangia
A
- Enclosed/Capsuled spores
- Asexual spores
11
Q
Zygospores
A
- Fusion of nuclei from opposite mating types
- Sexual spores
12
Q
Fungi life environment
A
- Grow at a pH 5
- Resistant to low water environment
- Grows at a high sugar/salt concentrations
- Heterotrophic metabolism: requires organic carbon source
13
Q
Dermatomycoses
A
- Cutaneous infections
- Like keratin rich areas
14
Q
Tinea
A
-Ringworm
15
Q
Tinea Corporis
A
-Ringworm on the body
16
Q
Tinea Capitis
A
-Ringworm on the head
17
Q
Tinea Pedis
A
-Ringworm on the foot
18
Q
Systemic Mycoses
A
-Inhale arthorospores
19
Q
Arthospores
A
- Very primitive spore type, formed by the breaking up or disarticulation of fungal mycelia
- Treatment: amphotericin B
20
Q
Coccidioidomycosis
A
- Coccidioidesimmitis
- “Valley Fever”
- Found: Dry alkaline soils
- Contracted by inhaling arhrospores
- Lung infection
- Treatment: amphotericin B
21
Q
Hispoplasmosis
A
- Ennonsiella (Histoplasma) capsulata
- “Darling’s Disease
- Found: Rich, moist soils
- Inhaling spores
- Treatment: amphotericin B
22
Q
Blastomycosis
A
- Cryptococccusneoformans
- Found: Bird droppings
- Opportunistic
- Causes meningitis
23
Q
Candidiasis
A
- Candida albicans
- Human flora
- Opportunistic
24
Q
Protists
A
- Unicellular
- Nonphotosyntghesizing
- Wall-less
25
Reproduction of a protists
- Fission: asexual mitosis
- Schizogony: multiple nuclei and fragmentation
- Sexual: gamatocytes
26
Transmission of protists to humans
- Ingestion
| - Arthropod vector
27
Life Cycle of a protists
1. Trophozite
2. Cyst
3. Definitive host
4. Intermediate host
28
Trophozite stage
- Active
| - Adult feeding
29
Cyst
- Resting state or resistant form
| - NOT A REPRODUCTIVE STRUCTURE
30
Definitive host
-Houses sexual stage
31
Intermediate host
-All asexual stages
32
Amoebae
-Move and inquire food through pseudopods (extensions of the cytoplasm)
33
Flagellates
-Blood parasites transmitted by biting insects
34
Apicomplexa
-Nonmotile, obligate intracellular parasites and pathogens of animals
35
Plasmodium
- Causes: Malaria
- Transmitted: Mosquito bite
- Symptoms: Fever and chills
36
Giardia
| Giardia lamblia
-Causes: Giardiasis
-Transmitted: *cyst are transmitted Oral-fecal route
* trophozites form in small intes. after
ingestion of cyst
-Symptoms: Diarrhea
-2 forms: trophozoites (feeding form) and cyst (dormant)
37
Trichomonas vaginalis
- Causes: trichomoniasis
- Transmitted: Sexual contact
- Symptoms: Profuse vaginal discharge
38
Tryponasomes
| Trypanosoma cruzii
- Causes: Chagas disease (South American sleeping sickness)
- Transmitted: Kissing bug feces,
- Symptoms: Anemia, lethargy, heart & brain damage
- Parasite outside the RBC
39
Tryponasomes
| Trypanosoma brucei
- Causes: African sleeping sickness
- Transmitted: Tse Tse Fly
- Symptoms: Anemia, lethargy, heart & brain damage
- Parasite outside the RBC
40
Entamoeba hystolyctica
- Causes: Amoebic dysentery
- Transmitted: Food/water contaminated with human waste in form of cyst
- Symptoms: Severe diarrhea, bloody stools
- Cyst & trophozoites
41
Helminths
- Multicellular
| - Parasites
42
The two types of phyla
1. Platyhelminths: flatworms
| 2. Nematodes: roundworms
43
The two types of helminths
1. Platyhelminths
| 2. Ne
