Chapter 1 Flashcards

(56 cards)

0
Q

What do micro organisms do

A

Help maintain the balance of living organisms and chemicals in our environment

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1
Q

What are microbes and micro organisms

A

Minute living things that individually are usually too small to be seen with the unaided eye. Includes bacteria, fungi, protozoa and microscopic algae and viruses

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2
Q

What do soil microbes do

A

Breakdown waste and incorporate nitrogen gas from the air into organic compounds’s

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3
Q

What does pathogenic mean

A

Disease causing

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4
Q

What are some benefits of microbes

A

Makes food, clothing

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5
Q

What’s the genus

A

The first name which is capitalized

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6
Q

What is the specific epithet

A

The species name which is not capitalized

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7
Q

What are bacteria

A

Relatively simple, single celled organisms. Unicellular

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8
Q

What are prokaryotes

A

Bacterial cells which includes bacteria and Archaea

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9
Q

What is Bacillus

A

Rod shaped bacteria

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10
Q

What is coccus

A

Spherical shaped bacteria

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11
Q

What is spirilli

A

Corkscrew shaped bacteria

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12
Q

How do bacteria reproduce

A

They reproduce by binary fission

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13
Q

How do bacteria move

A

They moved by use of their flagella and cilia

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14
Q

What are bacterial cell walls composed of

A

They are composed of peptidoglycan

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15
Q

What is archaea

A

Consists of prokaryotic cells lacking peptidoglycan

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16
Q

What is methanogens

A

Produce methane as a waste product from respiration

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17
Q

What are extreme halophiles

A

Salt loving bacteria

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18
Q

What are extreme thermophiles

A

Live-in hot, sulfurous water

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19
Q

What are fungi

A

Eukaryotes, organisms whose cells have a distinct nucleus containing the cells DNA surrounded by the nuclear membrane

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20
Q

What is the fungi cell wall composed of

A

Chitin

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21
Q

What are masses of fungi called

A

Mycelia

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22
Q

What is hyphae

A

The long filaments on fungi

23
Q

What is Protozoa

A

Unicellular eukaryotic microbes that move by pseudopods flagella or cilia

24
How do protozoa live
They can live as free entities or as parasites that feed off of their host
25
What is algae
Photosynthetic eukaryotes that are both sexual and asexual. Their cell walls are composed of cellulose
26
What is a virus
Contains the core of one type of nucleic acid, either DNA or RNA her. Court is surrounded by a protein coat and a lipid membrane called an envelope
27
What are helminths
Flatworms and roundworms
28
How do you classify bacteria
The cell walls contain a protein carbohydrate complex called peptidoglycan
29
How do you classify Archaea
The cell walls, if present, lack of peptidoglycan
30
How do you classify eukarya
Protists are slime molds protozoa and algae. Fungi are unicellular yeast, multicellular molds and mushrooms. Plants are mosses, firms, cornifers and flowering plants. Animals are sponges, worms, insects, vertebrates
31
What is cell theory
All living things are composed of cells. All cells come from previous cells
32
What is biogenesis
Living cells can arise only from pre-existing living cells
33
What is aseptic technique's
Prevent contamination by unwanted microbes
34
What is fermentation
Yeasts convert the sugars to alcohol in the absence of air
35
What is Pasteurization
Heat just enough to kill most of the bacteria that causes spoilage
36
What is the germ theory of disease
Micro organisms may cause disease
37
What is immunity
Protection from disease provided by a vaccination
38
What is vaccine
Cultures of avirulent microorganisms use for preventative inoculations
39
What is chemotherapy
Treatment of disease by using chemical substances
40
What is antibiotics
Chemicals produced naturally by bacteria and fungi to act against other microorganisms
41
What is synthetic drugs
Chemotherapeutic agents prepared from chemicals in the laboratory
42
What is bacteriology
The study of bacteria
43
What is mycology
The study of fungi
44
What is Parasitology
Study of protozoa and parasitic worms
45
What is genomics
The study of all organisms genes
46
What is immunology
The study of immunity
47
What is virology
The study of viruses
48
What is recombinant DNA
Fragments of human and animal DNA that codes for proteins attached to bacteria DNA. Can be used to make large quantities of desired protein
49
What is microbial genetics
Studies the mechanisms by which micro organisms inherit traits
50
What is molecular biology
Studies how genetic information is carried in molecules of DNA and how DNA directs the synthesis of proteins
51
What is microbial ecology
The study of the relationship between micro organisms and their environment
52
What is bioremediation
Using bacteria to break down pollutants
53
What is biotechnology
The commercial use of micro organisms to produce foods and chemicals
54
What is gene therapy
Inserting a missing genes or replacing the defective one in human cells
55
What is an infectious disease
Disease in which pathogens invade a susceptible host