Protista Flashcards
Phylum Bacciliariophyta aka Diatoms
-Photo synthetic with red and yellow pigment
-Cell wall of silica (glass) or prectin
aquatic
- stores sugar as oil
- oil helps float
- creates sea foam
Basic characteristics of protista
eukaryotic
unicellular (not all but most)
Asexual reproduction with some sexual
Autotrophic or heterotrophic
Names of all 3 plant like protist phylums
Euglenophyta
Pyrrophyta
Baccilariophyta
Phylum Euglenophyta
-move with flagella (near eyespot)
- Have photosynthetic chloroplasts
- Pellicile and contractile fibres
_keeps shape, can compact
-stores sugar as starch
Phylum Pyrophyta
- Mostly marine
- two flagella
- chlorophyll ( red and yellow pigments)
- cell wall of cellulose
- bio-luminescent
- cause red tide (nerve toxin)
Names of the three fungus-like protists
aerasimycota (slime mold)
- myxomycota (slime mold)
- Oomycota (spores, water molds)
Ecological roles of protists
- primary producer eg. phytoplankton
- symbitic relationships eg. trichnonympha
- Primary consumer eg. zooplankton
- pathogen eg. Trypanosoma
Protist pathogens
- paralytic shellfish poisoning
- ameobic dysentry
- African sleeping sickness
- Malaria
Paralytic shellfish poisoning
red tide
nerve toxin
Ameobic dysentry
attacks intestines
Attacks intestines
Ameobic dysentry
African sleeping sickness
attacks blood cells
very tired “sleeping”
Attacks nerve system
puts you in a coma
Puts you in a coma
African sleeping sickness
Malaria
attacks liver malaise fever death lots of toxins in body
Attacks liver
Malaria
Origin of protists
- endosymblosis theory
- mitochondria of all eukaryotic cells evolve from aerbic bacteria engulfed/living inside of host cell
- chloroplasts of all eukaryotic cells evolved from endosymbiotic cyanobacteria
Classification of protists
animal like; heterotriphic
plant like; photosynthetic autotrophic
fungus like; extracellular decomposer
Animal like protist characteristics
Zooplankton
heterotrophic
Motility: flagella, pseudopods, cilia
consumer
Three names of aminal like protist phylums
Ciliophora (paramecium)
zoomastigina (zooflagellates)
sarcodina (sarcode=jelly)
Another name for ciliophora
paramecium
Another name for zoomastigina
zooflagellates
Another name for sarcodina
amoeba
Phylum ciliophora
move with cilia
fast
pellicile coating (tough, flexible, maintains shape)
Phylum Zoomastigina
also known as zooflagellates
have one or more flagella
heterotrophic
most are parasitic pathogens or symbiotic
Example of a zoomastigina
trypanosoma (African sleeping sickness)
Phylum sarcodina
Move with pseutopods outer layer of calcium carbonate aquatic have a contractile vacuole engulf their food with pseutopods food vacuoles (bubbles) form and enzymes digest
How do Protists in the phylum sarcodina consume their food?
Pseutopods engulf organic matter (phagocytotis)
Food vacuols form
enzymes digest
What does sarcode mean
jelly (looks like a booger)
Method of sexual reproduction in paramecium
fission
Short, hairlike structures used for movement
Cilia
Finger like projections of cytoplasm
pseudopod
Protist that has a three stage life cycle
slime mold
Method of reproduction in ameba
conjugation
Gives shape to the paramecium
pellicle
Contains chlorophyll
chloroplast
reacts to light
eyespot
used for movement by paramecium
cilia
The paramecium ingests its food through this opening
oral groove
pseudopods
used for movement and obtaining food
Which protists have shells made of silica
diatoms
the long, hairlike structures some protists use for locomotion are called
flagella
How do euglena get food
by making it
Ameba obtain food by
surrounding it
