2ND Flashcards

1
Q

3 PEOPLE IN THE EXPERIMENTS ON THE THEORY OF SG

A
  • FRANCESCO REDI
    -JOHN NEEDHAM
    -LAZZARO SPALLANZANI
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q
  • Italian Physician
  • He refuted the idea that maggots spontaneously generate on meat left out in the open air
A

FRANCESCO REDI

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q
  • English (Scottish) clergyman
  • He argued that microbes arose spontaneously in broth from a “life force”
A

JOHN NEEDHAM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q
  • Italian priest, bilogist, and psychologist
  • Has experiments with broth aimed to disprove those of Needham
  • He hypothesized that microbes from the air and boiling will kill them
A

LAZZARO SPALLANZANI

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

NEEDHAM’S BROTH PROCESS

A
  1. Boiled broth for 1 minute
  2. Sealed with loose cork
  3. Bacteria still grew
  4. Therefore, spontaneous generation must be true
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

HOW DID PASTEUR DISPROVED THE THEORY OF SG

A
  • Pasteur predicted that microorganisms in putrefying materials were descendants of cells that entered from the air or cells that had been initially present on the decaying materials
  • He reasoned that if food were treated in such a way as to destroy all living organisms present–that is, if it were rendered sterile–and if it were kept sterile, it would not putrefy
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

4 PEOPLE BEHIND MAJOR DISCOVERIES IN MICROBIOLOGY

A

-LOUIS PASTEUR
-ROBERT KOCH
-MARTINUS BEIJERINK
-SERGEI WINOGRADSKY

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

His principles were quickly adapted for the preservation of milk and many other foods by heat treatment, which we now call

A

-PASTEURIZATION

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

3 VACCINES THAT PASTUER DEVELOPED

A
  • ANTHRAX
  • FOWL CHOLERA
  • RABIES
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q
  • Metabolic process by which organic molecules (normally glucose) are converted into acids gases, or alcohol in the absence of oxygen
A

FERMENTATION

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q
  • Process of killing or removing all forms of life, especially microorganisms, associated with a given object or present in a given area
A

STERILIZATION

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

free of all living organisms (cells) and viruses

A

STERILE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q
  • Heating of milk for a short time to a temperature that will destroy undesirable microorganisms without changing the composition and food value of the material itself
A

PASTEURIZATION

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q
  • Causative agent of a disease (bacterium, toxin, virus, or other microbes) so modified as to be incapable of producing the disease yet at the same time so little changed that it is able, when introduced into the body to elicit the production of specific antibodies against the disease
A

VACCINE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q
  • He provided direct experimental support to the germ theory of disease:
    > Microbes were the cause of infectious disease
A

ROBERT KOCH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q
  • He discovered the causative agent of tuberculosis
    > Mycobacterium tuberculosis
A

ROBERT KOCH

17
Q

WHAT IS THE CAUSATIVE AGENT OF TUBERCULOSIS

A
  • MYCOBACTERIUM TUBERCULOSIS
18
Q
  • He formulated a set of rigorous criteria, now know as KOCH’S POSTULATES, for definitely linking cause and effect in an infectious disease
A

ROBERT KOCH

19
Q

KOCH’S POSTULATES (state all 4)

A
  1. The suspected pathogenic organism should be present in all cases of the disease and absent from healthy animal.
  2. The suspected organism should be grown in pure culture.
  3. Cells from a pure culture of the suspected organism should cause disease in a healthy animal.
  4. the organism should be reisolated and shown to be the same as the original.
20
Q
  • Dutch microbiologist and botanist
  • His clear formulation of the enrichment culture technique is his greatest contribution to the field of microbiology
A

MARTINUS BEIJERINK

21
Q
  • He isolated the first pure culture of many soil and aquatic microorganisms, including sulfate-reducing and sulfur-oxidizing bacteria, lactic acid bacteria, green algae, various anaerobic and many other
A

MARTINUS BEIJERINK

22
Q

first aerobic nitrogen-fixing bacterium

A

Azotobacter chroococcum

23
Q

> His classic studies of “mosaic disease” of tobacco, described not only the first virus but also the basic principles of virology

A

MARTINUS BEIJERINK

24
Q
  • Russian microbiologist and ecologist
  • He was interested in the bacterial diversity of solid and waters and was highly successful in isolating several notable bacteria from natural samples
A

SERGEI WINOGRADSKY

25
Q
  • He was particularly interested in bacteria that cycle nitrogen and sulfur compounds, such as the nitrifying bacteria and the sulfur bacteria
  • He studied Beggiatoa which are large bacteria commonly observed in marine sediment
A

SERGEI WINOGRADSKY

26
Q

STONE EATERS

A

LITOTROPHS

27
Q

the oxidation of inorganic compounds to yield energy

A

chemolithotrophy

28
Q
  • He showed that Beggiatoa catalyze specific chemical transformations in nature and proposed the important concept of chemolithotrophy, the oxidation of inorganic compounds to yield energy
  • He showed that lithotrophs (“stone eaters”), are widespread in nature. Like photosynthetic organisms, chemolithotrophic bacteria obtain their carbon from CO2
A

SERGEI WINOGRADSKY

29
Q

He isolated the anaerobic nitrogen-fixing bacterium Clostridiumpasteurianum, becoming the first to
demonstrate the process of nitrogen
fixation

A

Sergei WInogradsky

30
Q

what is the first nitrifying bacteria

A

Clostridium pasteurianum