lab2 Flashcards
(22 cards)
Eukaryotic cell fun facts (3)
several linear chromosomes
membrane bound organelles,
cytoskeleton made of microtubules and microfilaments
protista fun facts (3)
eukaryotic organisms which do not fit into the definition of fungi plants or animals
not closely related to eachother
most unicellular
Amoebozoa phylum fun facts (3)
move by lobe-like extensions called pseudopodia
animal like
can change body shape
unicellular animals like protists and slime molds
- amoeba phylum is _______
- Our model organism is ______
- It’s troph type is _____
- it’s cellular type is ________
- It’s habitat is _______
- It obtains energy from ________
- Sessile or motile? Motile how?
- reproduction is ________
- Some adaptations are ________
- Some friends are _________
- amoebozoa
- amoeba
- heterotrophic
- Unicellular
- freshwater/saltwater/moist soil/animals
- feeding by phagocytosis, movement of cytoplasm (intracellular digestion)
- motile
- reproduction by mitosis
- contractile vacuole adaptation to freshwater, transport water out of cell to combat osmosis
- entamoeba gingivalis, entamoeba bistolytica
wastes are expelled from the food vacuole by reverse phagocytosis
phagocytosis
forms membrane-bound food vacuole around prey, intracellular digestion, expells wastes
mitosis fun facts (2)
doulbe genetic material
create second nucleus, pinch cell membrane inward and split
Ciliophora characteristics (3)
have cilia for locomotion
two types of nuclei
cell mouth for ingestion
- paramecium phylum is _______
- Our model organism is ______
- It’s troph type is _____
- it’s cellular type is ________
- It’s habitat is _______
- It obtains energy from ________
- Sessile or motile? Motile how?
- reproduction is ________
- Some adaptations are ________
- Some friends are _________
- ciliophora
- paramecium
- heterotrophic,
- unicellular
- freshwater
- feeds on bacteria and small protists
- motile by cilia
- reproduces sexually(conjugation of micronuclei), and asexually(mitosis)
- Has two contractile vacuoles, sweeps food in through cell mouth from oral groove
- stentor, euglena, spirostomum
- has pellicle
- rounded end=head, pointed end=tail expels wastes,
Both names of nuclei of paramecium & their purpose
large bean-shaped macronucleus - chromosomes undergo repeated duplications to form multiple copies of chromosomes
micronucleus - store genetic material for organism
Chlorophyta fun facts (6)
chrolophyll a and chlorophyll b pigments in chloroplasts
external cell walls
green algae
mostly freshwater
unicellular, colonial or multicellular, motile or sessile
- Green algae phylum is _______
- Our model organism is ______
- It’s troph type is _____
- it’s cellular type is ________
- It’s habitat is _______
- It obtains energy from ________
- Sessile or motile? Motile how?
- reproduction is ________
- Some adaptations are ________
- Some friends are _________
- What is the symmetry
- chlorophyta
- Micrasterias
- autotroph
- unicellular
- freshwater
- green chloroplast in each semi cell
- motile by secretion of mucilage
- asexually - mitosis, sexually - conjugation making a zygote
- cell wall prevents it from bursting
- Protococcus, Selenastrum, Chlamydomomas, Ulothrix, Volvox, Scenedesmux, Ulva
- symmetry - billateral symmetry form mirror-image semi-cells
- joined by isthmus, nucleus in isthmus,
pyrenoids
take up unused sugar in micrasteria
conjugation
can make a zygote
zygospore
thick protective wall for zygote
Phaeophyta fun facts
brown algae
plant like
large multicellular, autotrophic
energy from photosynthesis, chlorophyll a, c^1 and c^2, fucoxanthin(brown pigment)
- Brown algae phylum is _______
- Our model organism is ______
- It’s troph type is _____
- it’s cellular type is ________
- It’s habitat is _______
- It obtains energy from ________
- Sessile or motile? Motile how?
- reproduction is ________
- Some adaptations are ________
- Some friends are _________
- Phaeophyta
- Fucus
3, autotroph - multicellular
- high on rocky marine shorelines
- photosynthesis
- sessile (holdfasts anchor and pneumatocysts keep it aloat
- sexually, has receptacls and conceptacles
- holdfasts to anchor, pneumatocysts to keep it afloat
- Kelp, porphora, diatoms
brach dichotomously, undifferentiated body called thallus,
pneumatocysts
air sacs to keep organism floating at high tide, raised oval-shaped
holdfasts
attach organism to rock to hold in place against tides and waves
receptacles
swollen tips (on fucus)
conceptacle
reproductive opening on receptacle
What contribute to the cell’s organization and shape
microtubules and microfilaments
pellicle
cell membrane(not visible), cilia and some internal membranes
