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Algae > Culturing and Cyanobacteria > Flashcards

Culturing and Cyanobacteria Flashcards

1
Q

Group of freshwater algae particularly suited to biotech

A

Chlorella

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2
Q

Batch culture

A

Closed system with limited nutrients and space

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3
Q

Phases of growth curve

A

Lag phase, log phase, stationary phase, death phase

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4
Q

Chemostat

A

Culture system where fresh media/nutrients introduced and media/algae withdrawn at a constant rate

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5
Q

Turbidostat

A

Similar to chemostat but will capability to maintain constant cell density

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6
Q

Cyanobacteria

A

Gram-negative prokaryotic bacteria that obtain energy via photosynthesis

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7
Q

Oxyphotobacteria

A

Obtain energy via light and release oxygen as a byproduct

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8
Q

Prokaryotic

A

No nucleus or membrane-bound organelles

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9
Q

Binary fission

A

Asexual reproduction where cells divide into two identical daughter cells

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10
Q

Model cyanobacteria

A

Synechocystis

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11
Q

Heterocyst

A

Cell specialized in nitrogen fixation

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12
Q

Akinete

A

Cyanobacterial resting spore with a thick cell wall and reserves of N and sugars

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13
Q

Horgomonia

A

Short motile chains of filamentous algae released from parent

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14
Q

Necridia

A

Cells that undergo apoptosis to detach horgomonia

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15
Q

Carboxysome

A

Protein compartment in cyanobacteria that houses Rubisco

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16
Q

Phycobilisome

A

Highly ordered protein-pigment complex used by cyanobacteria, red algae, and glaucophytes

17
Q

Phycobilins

A

Chromophores (molecules that absorb light)

18
Q

Antenna compexes

A

Phycobilins in disc-shaped stacks to maximize light harvesting

19
Q

Complementary chromatic adaptation

A

Ability to change pigment composition of phycobilisomes to catch more photons based on environment

20
Q

Filamentous cyanobacteria important in nutrient-poor tropical waters

A

Trichodesmium

Algae (3 decks)

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