Algae, protozoa, and fungi Flashcards
some algal cells have
flagella
pellicle: thickened cell membrane
stigma or eyespot: a light sensing organelle
Diatoms (unicellular algae)
Phytoplanktons
have silicon dioxide in their cell wall (no cellulose)
Dinoflagellate (unicellular algae)
Phytoplankton
no cellulose
fire algae > produce light
red tide > toxic
Desmids (unicellular algae)
seen in a banana structure under the microscope
Euglena
no cell wall no cellulose
volvox (multicellular algae)
no cell wall
seaweed (agar)
Prototheca
disease causing algae
Naegleria fowleri (Ameba)
meningoencephalitis
Acanthamoeba
causes eye infections
Ciliates move by
cilia (oarlike motion)
Balantidum coli (ciliates)
Causes balantidiasis in underdeveloped countries by drinking water
contaminated by swine feces
flagellated (sarcomastigophora) protozoa
move by flagella (wavelike motion) study table
sporozoa
(non-motile)
Plasmodium
malaria
transmitted by female Anopheles mosquitoes)
study table
call walls of fungi are made of
chitin
yeasts usually reproduce by (unicellular)
budding or spore formation
MO: Aspergillus
disease:
Aspergillosis (lung infection)
bread molds
Mucormycosis or zygomycosis (lung infection)
Dermatophytes
Tinea ‘ringworm’
Candida albicans causes (yeast)
oral thrush, yeast vaginitis, nail infections
Cryptococcus neoformans
Cryptococcosis (lung infection, meningitis)
Dimorphic fungi
can live either as yeasts (37 c) or as moulds (25 c)
Blastomyces dermatitis (dimorphic) causes
blastomycosis (a disease of the lungs and skin)
coccidioidomycosis (lung infection or systemic infection) is caused by
Coccidioides immitis (dimorphic fungi)
histoplasmosis is caused by
Histoplasma capsulatum (dimorphic)
Sporothrix schenckii
sporotrichosis
how do we classify fungi
based on their mode of sexual reproduction
Ascomycotina (classification of fungi)
higher fungi, septate, ascospores
Basidiomycotina
higher fungi, septate, basidiospores
Chytridiomycotina
lower fungi, a septate, Oospores, water mold
Zygomycotina
lower fungi and aseptate, zygospores (bread molds)