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Bio 121 lab > lab2 > Flashcards

lab2 Flashcards

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Biology 101 flashcards
1
Q

Eukaryotic cell fun facts (3)

A

several linear chromosomes
membrane bound organelles,
cytoskeleton made of microtubules and microfilaments

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2
Q

protista fun facts (3)

A

eukaryotic organisms which do not fit into the definition of fungi plants or animals
not closely related to eachother
most unicellular

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3
Q

Amoebozoa phylum fun facts (3)

A

move by lobe-like extensions called pseudopodia
animal like
can change body shape
unicellular animals like protists and slime molds

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4
Q
  1. amoeba phylum is _______
  2. Our model organism is ______
  3. It’s troph type is _____
  4. it’s cellular type is ________
  5. It’s habitat is _______
  6. It obtains energy from ________
  7. Sessile or motile? Motile how?
  8. reproduction is ________
  9. Some adaptations are ________
  10. Some friends are _________
A
  1. amoebozoa
  2. amoeba
  3. heterotrophic
  4. Unicellular
  5. freshwater/saltwater/moist soil/animals
  6. feeding by phagocytosis, movement of cytoplasm (intracellular digestion)
  7. motile
  8. reproduction by mitosis
  9. contractile vacuole adaptation to freshwater, transport water out of cell to combat osmosis
  10. entamoeba gingivalis, entamoeba bistolytica

wastes are expelled from the food vacuole by reverse phagocytosis

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5
Q

phagocytosis

A

forms membrane-bound food vacuole around prey, intracellular digestion, expells wastes

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6
Q

mitosis fun facts (2)

A

doulbe genetic material

create second nucleus, pinch cell membrane inward and split

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7
Q

Ciliophora characteristics (3)

A

have cilia for locomotion
two types of nuclei
cell mouth for ingestion

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8
Q
  1. paramecium phylum is _______
  2. Our model organism is ______
  3. It’s troph type is _____
  4. it’s cellular type is ________
  5. It’s habitat is _______
  6. It obtains energy from ________
  7. Sessile or motile? Motile how?
  8. reproduction is ________
  9. Some adaptations are ________
  10. Some friends are _________
A
  1. ciliophora
  2. paramecium
  3. heterotrophic,
  4. unicellular
  5. freshwater
  6. feeds on bacteria and small protists
  7. motile by cilia
  8. reproduces sexually(conjugation of micronuclei), and asexually(mitosis)
  9. Has two contractile vacuoles, sweeps food in through cell mouth from oral groove
  10. stentor, euglena, spirostomum
  • has pellicle
  • rounded end=head, pointed end=tail expels wastes,
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9
Q

Both names of nuclei of paramecium & their purpose

A

large bean-shaped macronucleus - chromosomes undergo repeated duplications to form multiple copies of chromosomes

micronucleus - store genetic material for organism

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10
Q

Chlorophyta fun facts (6)

A

chrolophyll a and chlorophyll b pigments in chloroplasts
external cell walls
green algae
mostly freshwater
unicellular, colonial or multicellular, motile or sessile

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11
Q
  1. Green algae phylum is _______
  2. Our model organism is ______
  3. It’s troph type is _____
  4. it’s cellular type is ________
  5. It’s habitat is _______
  6. It obtains energy from ________
  7. Sessile or motile? Motile how?
  8. reproduction is ________
  9. Some adaptations are ________
  10. Some friends are _________
  11. What is the symmetry
A
  1. chlorophyta
  2. Micrasterias
  3. autotroph
  4. unicellular
  5. freshwater
  6. green chloroplast in each semi cell
  7. motile by secretion of mucilage
  8. asexually - mitosis, sexually - conjugation making a zygote
  9. cell wall prevents it from bursting
  10. Protococcus, Selenastrum, Chlamydomomas, Ulothrix, Volvox, Scenedesmux, Ulva
  11. symmetry - billateral symmetry form mirror-image semi-cells
  • joined by isthmus, nucleus in isthmus,
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12
Q

pyrenoids

A

take up unused sugar in micrasteria

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13
Q

conjugation

A

can make a zygote

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14
Q

zygospore

A

thick protective wall for zygote

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15
Q

Phaeophyta fun facts

A

brown algae
plant like
large multicellular, autotrophic
energy from photosynthesis, chlorophyll a, c^1 and c^2, fucoxanthin(brown pigment)

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16
Q
  1. Brown algae phylum is _______
  2. Our model organism is ______
  3. It’s troph type is _____
  4. it’s cellular type is ________
  5. It’s habitat is _______
  6. It obtains energy from ________
  7. Sessile or motile? Motile how?
  8. reproduction is ________
  9. Some adaptations are ________
  10. Some friends are _________
A
  1. Phaeophyta
  2. Fucus
    3, autotroph
  3. multicellular
  4. high on rocky marine shorelines
  5. photosynthesis
  6. sessile (holdfasts anchor and pneumatocysts keep it aloat
  7. sexually, has receptacls and conceptacles
  8. holdfasts to anchor, pneumatocysts to keep it afloat
  9. Kelp, porphora, diatoms

brach dichotomously, undifferentiated body called thallus,

17
Q

pneumatocysts

A

air sacs to keep organism floating at high tide, raised oval-shaped

18
Q

holdfasts

A

attach organism to rock to hold in place against tides and waves

19
Q

receptacles

A

swollen tips (on fucus)

20
Q

conceptacle

A

reproductive opening on receptacle

21
Q

What contribute to the cell’s organization and shape

A

microtubules and microfilaments

22
Q

pellicle

A

cell membrane(not visible), cilia and some internal membranes

Bio 121 lab (8 decks)

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