MICRO 231 EXAM 1 (TOPICS 1-4) (LATEST UPDATE) REAL
QUESTIONS AND VERIFIED ANSWERS | 100% CORRECT |
ALREADY GRADED A+
how long have prokaryotes been present on earth Ans✓✓✓3.8 billion
years
what type of prokaryotes left fossil remains in some soft shale rocks that
are about 3.5 billion years old Ans✓✓✓cyanobacteria
When was the existence of microbes first noted by humans using a
microscope Ans✓✓✓1600s Hooke
before microscopes, what processes were humans aware of that were
caused by microbes Ans✓✓✓decay, fermentation
what is the plague, what is it caused by, why is it considered to have had
a major effect on human history Ans✓✓✓bubonic plague, caused by
bacterium Yersinia pestis, killed about 25% of Europe's population
what type of microbes did Hooke observe and describe
Ans✓✓✓bacteria, protozoans, yeast
what did Hooke use to observe the microbes Ans✓✓✓glass lens, small
microscope
,what infectious disease did Semmelweis try to control or eradicate in the
hospital facilities he had authority over, what method did he use
Ans✓✓✓childbed fever, hand washing
which bacterium is now known to have been the cause of childbed fever
Ans✓✓✓streptococcus
what infectious disease did John Snow try to control or eradicate from
the area of London Ans✓✓✓cholera
what method did John Snow use to try to eradicate cholera
Ans✓✓✓epidemiology, remove handle from water pump
what is the scientific name of the pathogenic bacterium that causes
cholera Ans✓✓✓vibrio cholerae
what area of study in the public field of health microbiology did this
work by Snow help to establish Ans✓✓✓epidemiology
what infectious disease did Jenner try to control or eradicate in the area
of London Ans✓✓✓small pox
what type of microbes cause small pox Ans✓✓✓variola virus
, what method did Jenner use to attempt disease control Ans✓✓✓cowpox
lesion
what were the major experiments that Pasteur carried out which led tot
major discoveries in microbiology Ans✓✓✓fermentation, spontaneous
generation, silk worm disease, rabies vaccine
fermentation Ans✓✓✓experiment to find out why beer sours, heat
prevents growth
spontaneous generation Ans✓✓✓can something arise from nothing,
airborne microbes
silkworm Ans✓✓✓verify certain microorganisms cause certain disease,
protozoa
rabies Ans✓✓✓experiment if vaccines work
what were the major techniques that Koch and his coworkers devised to
enable them to study microorganisms, especially some cultural bacteria
Ans✓✓✓staining techniques, isolating colonies, streaking
What are Koch's postulates Ans✓✓✓1. The same pathogen must be
present in every case of the disease.
QUESTIONS AND VERIFIED ANSWERS | 100% CORRECT |
ALREADY GRADED A+
how long have prokaryotes been present on earth Ans✓✓✓3.8 billion
years
what type of prokaryotes left fossil remains in some soft shale rocks that
are about 3.5 billion years old Ans✓✓✓cyanobacteria
When was the existence of microbes first noted by humans using a
microscope Ans✓✓✓1600s Hooke
before microscopes, what processes were humans aware of that were
caused by microbes Ans✓✓✓decay, fermentation
what is the plague, what is it caused by, why is it considered to have had
a major effect on human history Ans✓✓✓bubonic plague, caused by
bacterium Yersinia pestis, killed about 25% of Europe's population
what type of microbes did Hooke observe and describe
Ans✓✓✓bacteria, protozoans, yeast
what did Hooke use to observe the microbes Ans✓✓✓glass lens, small
microscope
,what infectious disease did Semmelweis try to control or eradicate in the
hospital facilities he had authority over, what method did he use
Ans✓✓✓childbed fever, hand washing
which bacterium is now known to have been the cause of childbed fever
Ans✓✓✓streptococcus
what infectious disease did John Snow try to control or eradicate from
the area of London Ans✓✓✓cholera
what method did John Snow use to try to eradicate cholera
Ans✓✓✓epidemiology, remove handle from water pump
what is the scientific name of the pathogenic bacterium that causes
cholera Ans✓✓✓vibrio cholerae
what area of study in the public field of health microbiology did this
work by Snow help to establish Ans✓✓✓epidemiology
what infectious disease did Jenner try to control or eradicate in the area
of London Ans✓✓✓small pox
what type of microbes cause small pox Ans✓✓✓variola virus
, what method did Jenner use to attempt disease control Ans✓✓✓cowpox
lesion
what were the major experiments that Pasteur carried out which led tot
major discoveries in microbiology Ans✓✓✓fermentation, spontaneous
generation, silk worm disease, rabies vaccine
fermentation Ans✓✓✓experiment to find out why beer sours, heat
prevents growth
spontaneous generation Ans✓✓✓can something arise from nothing,
airborne microbes
silkworm Ans✓✓✓verify certain microorganisms cause certain disease,
protozoa
rabies Ans✓✓✓experiment if vaccines work
what were the major techniques that Koch and his coworkers devised to
enable them to study microorganisms, especially some cultural bacteria
Ans✓✓✓staining techniques, isolating colonies, streaking
What are Koch's postulates Ans✓✓✓1. The same pathogen must be
present in every case of the disease.
