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Bio 1306 Exam 3 > Chapter 28 > Flashcards

Chapter 28 Flashcards

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Biology 101 flashcards
1
Q

How does the endosymbiotic theory say plastids and mitochondria came around?

A

Engulfed aerobic and photosynthetic bacteria became functioning organelles

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2
Q

What are the 4 supergroups of eukaryotic cells?

A

SAR, Excavata, Archaeplastida, Unikonts

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3
Q

What are the 3 domains of life?

A

Eukarya, bacteria, archae

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4
Q

Do eukarya have a nucleus and membrane bound organelles?

A

Yes

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5
Q

What does the cytoskeleton do?

A

Lets eukarya have irregular forms and change shape as they feed, move, and grow

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6
Q

What are protists?

A

Eukaryotes that aren’t plants, animals, or fungi

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7
Q

What group used to be a kingdom?

A

Protists

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8
Q

What are most eukaryotic lineages?

A

Protists

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9
Q

Are most protists unicellular or multicellular?

A

Unicellular organisms

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10
Q

What are photoautotrophs?

A

Autotrophs that gain energy from light

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11
Q

What are mixotrophs?

A

Organisms that can use several different feeding strategies

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12
Q

How do protists reproduce?

A

Asexually

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13
Q

How did excavates get their name?

A

Some have an excavated feeding groove

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14
Q

What are some traits of excavates?

A

Modified mitochondria or unique flagella

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15
Q

What are some traits of diplomonads?

A

Reduced mitochondria

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16
Q

What are euglenozoans?

A

A diverse group of diplomonads with spiral/cystalline flagella (EG tryphysona, euglena)

17
Q

What does SAR stand for?

A

Stramenophiles, Alveolates, Rhizaria

18
Q

What fall into the Stramenophiles group?

A

Diatoms, brown algae, water molds

19
Q

What are some characteristics of stramenophiles?

A

Can have “hairy” or “smooth” flagella, diatoms have glass like overlapping boxy walls made of silica.

20
Q

Is brown algae unicellular or multicellular? What does it look like?

A

Multicellular, plant like

21
Q

What tissues/organs does brown algae have?

A

None

22
Q

What were oomycetes formely classified as?

A

Fungi

23
Q

What historical event did oomycetes cause?

A

Irish famine (potato blight)

24
Q

Are there haploid or diploid stages for multicellular organisms?

A

Both

25
Q

What structure do most alveolites have?

A

Enclosed scs below the cell membrane

26
Q

What organisms fall under the alveolite category?

A

DinoflagelletesH

27
Q

How do dinoflagelletes move?

A

By flagella

28
Q

What are some dinoflagellates?

A

Ciliates (move by cilia, EG paramecium), plasmodium (parasite that causes malaria)

29
Q

LOOK AT MOSQUITO DIAGRAM

A
30
Q

LOOK AT LIFE CYCLE DIAGRAM AND KNOW WHAT STAGES ARE DIPLOID/HAPLOID

A

Bio 1306 Exam 3 (6 decks)

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