Midterm Review Flashcards

1
Q

Antonie van Leeuwenhoek

A

Dutch amateur microscope builder

Observed animalcules

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2
Q

Lucretius

A

Disease caused by tiny invisible creatures

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3
Q

Aristotle

A

Spontaneous generation

Prevailing concept for 2000 years

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4
Q

Francesco Redi

A

Chessecloth over meat did not develop maggots

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5
Q

John Needham

A

Boiled broth sealed into flasks still became turbid

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6
Q

Lazzaro Spallanzi

A

Sealed flasks of broth that were boiled did not become turbid
Perhaps air was required for microbes to grow

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7
Q

Louis Pasteur

A
First to connect cause (microorganisms) and effect (disease, growth, metabolic products)
Responsible for:
- Discovering fermentation
- Determining the nature of disease
- Disproving spontaneous generation
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8
Q

Spirochetes

A

Twizzler-like

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9
Q

Cocci

A

Spheres

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10
Q

Staphlyo

A

clusters

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11
Q

Strepto

A

chains

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12
Q

Sarcina

A

tetrads

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13
Q

Diplo

A

pairs

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14
Q

Filamentous

A

Caudobacter
Found in freshwater
Ancient

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15
Q

Vibrio

A

bent rod

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16
Q

Morphogenesis

A

change in shape

17
Q

Monomorphic

A

one shape

found in most pure cultures

18
Q

Pleomorphic

A

multiple shapes
changes with growth (cells become smaller as they age)
due to environmental cues (sporulation - nutrient limitation)