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Botany > CH. 13 Prokaryotes/Viruses > Flashcards

CH. 13 Prokaryotes/Viruses Flashcards

1
Q

Oscillatoria (Cyanobacteria)

A

long filament with oscillatory mvmt, breaks into pieces called hormogonium

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2
Q

Cyanobacteria (blue-green algae)

A

photosynthetic bacteria,
Pigments: chlorophyll a, carotenoids, phycobilins
Colonial, free living or symbiotic

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3
Q

Nostoc (cyanobacteria)

A

gelatinous balls of filaments with heterocysts

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4
Q

Heterocysts

A

nitrogen-fixing cells

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5
Q

Akinetes

A

thick walled dormant cells specialized for survival

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6
Q

Anabaena (Cyanobacteria)

A

chains of cells, with akinetes and heterocysts

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7
Q

Stromatolites

A

Oldest known fossils formed from many layers of bacteria and sediment.

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8
Q

Archaea Types

A

methanogens -produce methane
strictly anaerobic
live-swamps, sewers

halophiles- salt-loving occurs when high salt concentrations
live- salt lakes

thermophiles-heat loving occurs in extreme hot environments

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9
Q

Viruses and viral diseases

A

Nonliving; Insect vector, causes ring spot and mosaic

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Botany (8 decks)

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