MCB 3020 EXAM 1 PART 1 QUESTIONS AND
ANSWERS
Hat is the role of microbes in maintain temperature on earth? (role of microbes in co2
and ch4 recycling) - answers - co2 and ch4 are greenhouses gases that are produced
by microbes (organic carbon into co2 and ch4 and vice versa)
-> microbes control the temperature
-> these gases trap infared light, and warm up the planet.
List the top three causes of death in the us. - answers - 1. Heart diseases
2. Cancer
3. Stroke
How has the role of microbes changed over the last 100 years? - answers - 100 years
ago, the main cause of death in the us was infectious diseases (pneumonia,
terbuculosis, etc.)
Main increases in public health:
1) water purification and sewer treatment (clean water act)
2) vaccines
3) discovery of antibiotics (alexandar flemming)
List the major contributions to the science of microbiology - theories - answers - prior,
people believed in spontaneous generation.
-> life arises from non-living
Counter to that, germ theory of disease came about
- diseases come from germs, and those germs come from other living things (such as
other germs)
List the major contributions to the science of microbiology - louis pasteur - answers - 1)
swan-neck flask experiment
- put food in flask, heated flask.
- flask design made air not travel through
Microbes within the air actually entered the food and contaminated it.
- he thus disproved *spontaneous generation*
2) pastuerization
- heating things up to 60-70 degrees c killed pathogens/germs,
, List the major contributions to the science of microbiology - antony van leeuwenhock -
answers - invented the microscope - saw microorganisms on cloth through lens.
List the major contributions to the science of microbiology - edward jenner - answers -
he discovered/produced the smallpox vaccine.
List the major contributions to the science of microbiology - ignaz semmelweis -
answers - hospital working dealing with babies
- at time, they were dying of a disease called puerperal sepsis, a kind of streptococcal
infection
- telling doctors that hands were contaminated (wash your hands)
List the major contributions to the science of microbiology - robert koch - answers -
connected diseases to microbes
- koch's postulates (set of criteria) ->
*one microbe causes one disease*
Established etiology - the cause of disease
- epidemiology
Epidemiology - answers - branch of medical science concerned with the incidence,
distribution, and control of diseases that affect large numbers of people.
List the major contributions to the science of microbiology - john snow - answers - drew
a map of london to see what people got sick
- where the disease initiated, and what was the source of the disease.
List the major contributions to the science of microbiology - paul ehrlich - answers -
discovered first cure for syphilis.
-> advocated and developed chemotherapy
ANSWERS
Hat is the role of microbes in maintain temperature on earth? (role of microbes in co2
and ch4 recycling) - answers - co2 and ch4 are greenhouses gases that are produced
by microbes (organic carbon into co2 and ch4 and vice versa)
-> microbes control the temperature
-> these gases trap infared light, and warm up the planet.
List the top three causes of death in the us. - answers - 1. Heart diseases
2. Cancer
3. Stroke
How has the role of microbes changed over the last 100 years? - answers - 100 years
ago, the main cause of death in the us was infectious diseases (pneumonia,
terbuculosis, etc.)
Main increases in public health:
1) water purification and sewer treatment (clean water act)
2) vaccines
3) discovery of antibiotics (alexandar flemming)
List the major contributions to the science of microbiology - theories - answers - prior,
people believed in spontaneous generation.
-> life arises from non-living
Counter to that, germ theory of disease came about
- diseases come from germs, and those germs come from other living things (such as
other germs)
List the major contributions to the science of microbiology - louis pasteur - answers - 1)
swan-neck flask experiment
- put food in flask, heated flask.
- flask design made air not travel through
Microbes within the air actually entered the food and contaminated it.
- he thus disproved *spontaneous generation*
2) pastuerization
- heating things up to 60-70 degrees c killed pathogens/germs,
, List the major contributions to the science of microbiology - antony van leeuwenhock -
answers - invented the microscope - saw microorganisms on cloth through lens.
List the major contributions to the science of microbiology - edward jenner - answers -
he discovered/produced the smallpox vaccine.
List the major contributions to the science of microbiology - ignaz semmelweis -
answers - hospital working dealing with babies
- at time, they were dying of a disease called puerperal sepsis, a kind of streptococcal
infection
- telling doctors that hands were contaminated (wash your hands)
List the major contributions to the science of microbiology - robert koch - answers -
connected diseases to microbes
- koch's postulates (set of criteria) ->
*one microbe causes one disease*
Established etiology - the cause of disease
- epidemiology
Epidemiology - answers - branch of medical science concerned with the incidence,
distribution, and control of diseases that affect large numbers of people.
List the major contributions to the science of microbiology - john snow - answers - drew
a map of london to see what people got sick
- where the disease initiated, and what was the source of the disease.
List the major contributions to the science of microbiology - paul ehrlich - answers -
discovered first cure for syphilis.
-> advocated and developed chemotherapy
