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BIOL2116 > Living in a Microbial World and the History of Microbiology > Flashcards

Living in a Microbial World and the History of Microbiology Flashcards

1
Q

What are microbes good for?

A

Important in the production of products in the food and medical industries

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2
Q

What is bad about microbes?

A

Some are pathogenic: cause disease in humans, animals and plants

Some alter the colour and structure of art pieces and artifacts

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3
Q

What is microbiology?

A

The study of microorganisms and their interaction with their environment

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4
Q

Where can microbes live?W

A

Everywhere! Frozen temperatures, high salinity, low pH and high pressure

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5
Q

What is cell theory?

A

All living things are composed of one or more cells

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6
Q

In what type of living things is genetic material found in the nucleus?

A

Eukaryotic cells; also contains organelles in the nucleus

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7
Q

Is genetic material of prokaryotic cells found in the nucleus?

A

NO

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8
Q

What are characteristics of life?

A

Cells have homeostasis, ability to reproduce, respond to their environment, have metabolism, evolve through evolution

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9
Q

What are examples of prokaryotic cells?

A

Bacteria & Archae

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10
Q

What are examples of eukaryotic cells?

A

Protozoa, fungi and algae

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11
Q

What are examples of non-living, acellular microorganisms?

A

Viruses & prions

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12
Q

What is the basic study of microbiology used for?

A

To study microorganisms to understand basic biological purposes

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13
Q

What is applied microbiology used for?

A

To answer specific questions

Ex. to develop new drugs, or new ways of waste management

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14
Q

What are subdisciplines of applied microbiology?

A

Medical microbiology, food microbiology, industrial microbiology

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15
Q

What is a microbial culture?

A

A growth of one or more species of microorganisms in a laboratory setting

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16
Q

What is a mixed culture?

A

A culture with more than one species of microbe

17
Q

What is a pure culture?

A

A culture with a single species that needs to be purified to be identified

18
Q

What are cultures grown in?

A

Cultures are grown in or on different types of media, which support different types of nutrient growth

19
Q

What is a solid culture media?

A

Agar

20
Q

What is a liquid culture media?

A

Broth

21
Q

Who developed the pure culture technique?

A

Robert Koch in 1881

22
Q

What is the pure culture technique based on?

A

A theory that a colony arises from a single bacterial cell

23
Q

How are pure culture techniques formed?

A

They are formed by isolating a single colony to form a pure culture

24
Q

What is the streak plate technique?

A

A technique most often used to isolate pure colonies from a mixed population

25
Q

What pattern is used in the streak plate technique?

A

A zig zag pattern is repeated across the surface of the agar in four quadrants

BIOL2116 (2 decks)

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