Lab 4 - protists Flashcards
diatoms and brown algae: ______ :
Stramenopiles : SAR
Dinoflagellates and ciliates: ______ : _____
Alveolates : SAR
Red Algae, Chlorophytes, Charophytes : _____
Archaeplastida
Euglenozonas : _______
Excavata
Slime moulds and Tubulinids: _____ : _____
amoebozans : unikonta
mode of nutrition : Eulgenozan
photoautotrophic
heterotrophic
mode of nutrition : Ciliates
heterotrophic
mode of nutrition : dinoflagellates
photoautotrophic
mixotrophic
mode of nutrition : diatoms
photoautotroph
mode of nutrition : brown alage
photoautotrophic
mode of nutrition : red algae
photoautotrophic
parasitic
mode of nutrition : chlorophytes
photoautotrophic
mode of nutrition : charophytes
photoautotrophic
mode of nutrition : slime moulds
phagocytosis (heterotrophic)
mode of nutrition : tubulinids
Phagocytosis (heterotrophic)
cell wall : euglenozoan
pellicle
cell wall : ciliates
absent
cell wall : dinoflagellates
cellulose
cell wall : diatoms
silica
cell wall : brown algae
cellulose
cell wall : red algae
cellulose
cell wall : chlorophytes
cellulose
cell wall : charophytes
cellulose
cell wall : slime moulds
absent
cell wall : tubulinids
absent
habitat: euglenozoans
freshwater/parasitic
habitat: ciliates
freshwater
habitat: dinoflagellates
marine
habitat: diatoms
marine and freswater
habitat: brown algae
cold marine
habitat: red algae
marine
habitat: chlorophytes
fresh
Marine
habitat: charophytes
freshwater
habitat: slime moulds
moist terrestrial
habitat: tubulinids
terrestrial
marine
freshwater
parasitic
movement: tubulinids
pseudopodia
movement: slime moulds
cytoplasmic streaming
movement: charophytes
flagella but mostly sessile
movement: chlorophytes
flagella but mostly sessile
movement: red algae
non-motile
movement: brown algae
non-motile
movement: diatoms
non-motile but use currents to move
movement: dinoflagellates
flagella
movement: ciliates
cilia
movement: euglenozoan
flagella
how are euglenoids similar to green algae
possession of chlorophyll a and b
how are euglenoids different to green algae
different cell wall composition
true or false
ancestral euglenids ingested green algae and formed a stable relationship through primary endosymbiosis
false - secondary endosymbiosis
how do Egulena store their energy
as a carbohydrate called paramylon
stentor have ____ along the oral groove
cilia
stentors use their cilia for
- feeding
- movement
do Stentors have a rigid cell wall
NO - they are able to move and change shape fast
what does the colour of the Stentor say about its mode of nutrition
They ingest and form photosynthetic relationships with algae, causing them to have a blue or green color
contractile vacuole purpose in Stentor
for maintaining their water balance
macronucleus purpose in Stentor
non-reproductive function like cell metabolism or protein synthesis
dinoflagellates are ____ at maturity
haploid -
dinoflagellates reproduce ___
asexually
how did spirogyra get its name
characteristic spiral shape of the chloroplasts possessed by its members.
do slime moulds have cytoplasmic streaming
YES - in their plasmodium
what colour is Stentor
grey-green
dinoflagellates are _____ organisms
single-celled
what protists makes bioluminescence
dinoflagellates
what protist causes red tide
dinoflagellates
what is responsible for maintaining the dinoflagellate’s shape
cellulose plates inside the cell membrane
diatoms are ______ organisms
unicellular
how are diatoms transported
by currents
the diatom cell wall has ___ parts
2
what are two shapes for diatoms
centric and pennate
what shape of diatom is this
centric
centric diatoms have _____ symmetry
raidal
pennate diatoms have _____ symmetry
bilateral
what shape of diatom is this
pennate
what view is this of a diatom
side or gridle view
what view is this of a diatom
top or valve view
true or false
Laminaria superficially resemble plants
true
the similarities between plants and brown algae (laminaria) are ____
analogous
did the ancestor of brown algae and land plants have the body plan
NO
thallus (laminaria)
body
blade (laminaria)
leaf like
stipe (laminaria)
stem like
holdfast (laminaria)
roots like
laminaria reproduces via
flagellated animal-like zoospores that are released from sporangia from the surface of the blade
what photosynthetic pigments are found in red algae
chlorophyll a and phycoerythrin
phycoerythrin
photosynthetic pigment that is adapted to take advantage of wide spectrum of light in various depths of water
true or false
red algae are ENTIRELY dependent on the currents for fertilization and dispersal
true
_____ are some of the most ecologically and evolutionarily important algae
green algae
how are green algae and land plants similar
both have photosynthetic pigments and cell walls made from cellulose
green algae reproduction
asexual and sexual
types of green algae
chlorophytes
charophytes
chlorophytes diversity arises from
the thallus types
thallus types in chlorophytes
- unicellular
- colonial
- filamentous
- growth in three planes
true or false
some chlorophytes are known to form a mutualistic relation with fungi
true - lichens
what are some features that charophytes show to closely relate them to land plants
- type of cellulose
- presence of peroxisomes
- process of forming new cell wall material
amoebozoans (slime moulds) are sometimes referred to as
fungus like protists
slime moulds are important
decomposers
slime mould vegetative state
slime moulds exist as thin, streaming masses of MULTINUCLEATED protoplast
slime mould vegetative state is known as
plasmodium
what happens to slime moulds when the food supply is low
the plasmodium stops moving and begins to form a series of small mounds - developing into a mature sporangium
tubulinids are referred to as
animal-like protists
tubulinids have two regions of the cytoplasm
- endoplasm - more fluid and more central
- ectoplasm - nonflowing and more peripheral
what flows first into the tip of the pseudopodium tubulinids
endoplasm and then the ectoplasm
tubulinids are examples of
Amoebozan and supergroup unikonta
slime moulds are examples of
amoebozoan and supergroup unikonta
spirogyra is an example of
charophytes/green algae and supergroup archaeplastida
volvox is an example of
chlorophytes/green algae and supergroup archaeplastida
laminaria is an example of
brown algae/stramenopiles and supergroup SAR
diatoms are an example of
stramenopiles and supergroup SAR
dinoflagellates are an example of
alveolates and supergroup SAR
Stentor is an example of
alveolates and SAR supergroup
euglena is an example of
euglenozoans and supergroup excavata
plant-like protists are
photosynthetic and sessile
fungus-like protists are
heterotrophic and relatively sessile
animal-like protists are
heterotrophic and motile
euglena : supergroup excavata
Stentor : Alveolates : SAR clade
Dinoflagellate : alevolates SAR
diatoms : stramenopiles : SAR
laminaria : stramenopiles : SAR
polysiphonia : red algae : archaeplastida
volvox : (chlorophytes) green algae : archaeplastida
spirogyra : (charophytes) green algae: archaeplastida
slime moulds physarum : amoebozoan : unikonta
tubulinids amoeba proteus : amoebozoan : unikonta