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Microbiology > Intro to Microbiology > Flashcards

Intro to Microbiology Flashcards

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Biology 101 flashcards
1
Q

Harmful viruses

A
  • human immunodeficiency virus, Ex. AIDS/HIV

- Tobacco Mosaic Virus

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2
Q

Electron microscope

A

Used electrons instead of photons to visualize specimens, providing greater resolutions

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3
Q

How can fungi be beneficial?

A

Yeast- beer, bread, wine

Edible mushrooms

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4
Q

Culture

A

collection of microbial cells that have been grown in or on a medium

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5
Q

Archaea

A

Single cell d organism usually found extreme environments

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6
Q

Contrast

A

the ability to tell the difference between a specimen and its background

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7
Q

Beneficial Protozoa

A

food source for microinvertebrates

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8
Q

How can Archea be beneficial?

A

Human and ruminant digestive tracts - methanogens

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9
Q

Characteristics of a prokaryotic cell

A

Plasmids

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10
Q

Pathogenic

A

MO that do cause disease

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11
Q

Transmission electron microscope

A

Allows visualization on individual proteins or nucleic acids inside of a cell

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12
Q

MO with Eukaryotic cells

A

Protozoa, parasites, algae, fungi

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13
Q

magnification

A

the capacity of a microscope to enlarge an image

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14
Q

Bacteria

A

Single called organism capable of independent metabolism

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15
Q

How can viruses be beneficial?

A

Adenovirus- gene therapy

Protect human gut from invading bacteria

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16
Q

MOs that do not cause disease in the absence of normal host exist an e

A

Opportunistic pathogens

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17
Q

Characteristics of a eukaryotic cell

A

Nucleus
Mitochondria
Endoplasmic reticulum
Golgi complex

18
Q

Robert Hooke

A

the first person to observe cells under a microscope

19
Q

Types of microbes

A

bacteria, viruses, parasites, archaea, fungi, protozoa, algae

20
Q

Colony

A

The visible growth of bacterial or fungal cells on a solid medium starting from a single cell

21
Q

Parasite

A

Lives in or on another organism. May be microscopic or macroscopic

22
Q

Non-pathogenic

A

MO that do not cause disease

23
Q

MO with Prokaryotic cells

A

Bacteria, archaea

24
Q

Bright-field microscope

A

least complex microscope

25
Q

Fungi

A

Microscopic or macroscopic

Includes yeast, mold, mushrooms

26
Q

Resolution

A

ability to distinguish two side by side objects as seperate

27
Q

Media

A

nutrient mixture that contains all the nutrients needed for a MO to grow.

  • solid (agar)
  • liquid (broth)
28
Q

Similarity between prokaryotic cell and eukaryotic

A 
Cell wall
Ribosomes
Chromosomes
Cytoplasmic membrane
Cytoplasm
29
Q

Protozoa

A

Single celled organism with animal like behavior

organelles have the function of organs and tissues

30
Q

Viruses

A

Acellular organisms incapable of independent metabolism
Reproduces only in a living cell
- human, plant , animal, bacteria

Single type of genetic material, surrounded by a protein coat.

31
Q

Microorganisms

A

Life forms that are too small for the naked eye

32
Q

Scanning electron microscope

A

Provide hiRes 3D image of the surface of a cell only

33
Q

Culture

A

A collection of microbial cells that have been grown in or on a medium

34
Q

First person to observe cells under a microscope

A

Robert Hooke

35
Q

Objective lens

A

Nose pieces; multiple lenses that provide different magnifications

36
Q

Media

A

Mustering mixture that contains all the nutrients required for a microorganism to grow.

Solid (agar)
Liquid (broth)

37
Q

Virulent

A

Has a higher rate of potentially causing disease

One MO can be more virulent than another

38
Q

Normal flora

A

MO found on a healthy human body. Non threatening MOs

39
Q

Colony

A

a visible growth of bacteria or fungal cells on agar originally arising from one single cell

40
Q

Algae

A

Photosynthetic microorganism unrelated to each other
unicellular and microscopic
multicellular and macroscopic

41
Q

Staining

A

Increase the contrast of the specimen against its background

42
Q

Microbiology

A

Study of microorganism a and their functions

Microbiology (7 decks)

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