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54 terms

CH1 and CH 10 Questions

STUDY
PLAY
which of the following individuals is considered to be the "father of microbiology"
Anton van Leeuwenhoek
the microbes that usually live on or in a person are collectively referred to as
indigenous microflora
microbes that live on dead and decaying organic material are know as
saprophytes
the study of algae is called
phycology
the field of parasitology involves the study of whiche of the following types of organisms
arthropods, helminths and certain protozoa
Rudolf Virchow is given credit fro proposing which of the following theories
biogenesis
which of the following microbes are considered opligate intracellular pathogen
ricketts, chlamydias and viruses
which of the following statements is true
microbes are ubiquitous (virtually everywhere)
which of the following are even smaller than viruses
prions and viroids
Louis Pasteur
pasteurization
introduced the terms aerobes and anaerobes
developed vaccines for anthrax and rabies
disproved spontaneous generation
germ theory contributions that specific genes cause specific infections. ex: anthras, TB
Anton van Leeuwenhoek
first person to observe live bacteria and protozoa
untrained
father of microbiolgy
created the single-lens/single microscope
Robert Koch
developed an experimental procedure that could be used to prove that a specific microorganism is the cause of a specific infectious disease
methods of fixing, staining and photographing bacteria
germ theory-led to Koch's Postulates
cultivating bacteria on a olid medis
Rudolf Virchow
proposed the theory of biogenesis
Alexandre Emil Jean Yersin
discovered the causative agent of the plague
all infectectious diseases are caused by pathogens
all infectectious diseases are caused by pathogens
pathogens greathly out number nonpathogens
false (the reverse is true)
using microorganisms to clean up the environment is known as bioremediation
true
microorganisms are essential in the field of genetic engineering
true
microorganisms appeared on earth about 3.5 million years ago
false-3.5 billion years ago
Anton van Leeuwenhoek's experiments helped to prove that microorganisms cause diseas
false
Louis Pasteur and Robert Koch made significnt contributions to the "Germ Theory of Disease"
true
Pasteurization is a process that kills all microorganisms present in the liquid being pasturized
false-designed to kill pathogens
microorgaisms contribute more oxygen to our atmosphere than plants do
true
infectious diseases that are transmitted from animals to humans are known as zoonoses
true
anton van leeuwenhoek "1632-1723"
the "father of microbiology", but he was not a trained scientist. created the single len microscope. came up with the idea spontaneous generation or "abiogenesis".
rudolf virchow "1858"
first proposed the theory of biogenesis, which is that life can only arise from preexisting life.
louis pasteur "1822-1894"
came up with pasteurization, while trying to find a way to stop wine from spoiling. stated that specific microbes cause specific infectious disease. he developed vaccines, most known for rabies vaccine
robert koch "1843-1910"
developed methods of fixing, staining, and photographing bacteria. cultivated bacteria of solid media. one of his colleages was RJ petri-"petri dish". discovered the bacterium that causes tuberculosis. developed the skin test for TB. Koch's postulets.
a symbiont could be a (an)
commensal, opportunist, parasite
the greatest number and vaiety of indigenous microflora of the human body live in or on the
colon
escherichia coli living in the human colon can be considered to be a (an)
endosymbiont, opportunist, symbiont in a mutulistic relationship
which of the following sites of the hyman body does not have indigenous microflora
blood, lymp, spinal fluid, most internal tissues and organ, fetus, inner ear, eyes
which of the following would be present in hightes numbers in the indigenous microflora of the human mound
alph-hemolytic stereptocci
which of the follwoing would be present in highest numbers in the indigenous microflora of the skin
coagulase-neagtive staphylococci
the indigenous microflora of the external ear canal is most like the indigenous mircroflora of the
skin
which of the following are least likely to play a role in the nirtogen cycle
indigenous microflara
microorganisms are used in which of the following industries
anitibiotic, chemical, food, beer, and wine
the term that best describes a symbiotic relationship in which two differnent microorgaisms occuppy the same ecologic niche, but have absolutely no efffect on each other
neutralism
neutralism
when two microorganisms occupying the same environmental niches have absolutely no effect on each other
synergism
bacterial vaginosis is an example of
commensalism
a symbiotic relationship of benefit to one of the symvionts, but neither beneficial nor harmful to the other
ex: Demodex
parasitism
a symbiotic relationship of benefit to one of the symbionts and detrimental to the other
ex: Trypansoma gamviense
mutualism
E. coli or a licjhen is an example of
saprophytes
lives on dead or decaying organic matter, aiding in fertilization of soil
no microorganisms are able to live in the stomach, owing to the extremely low ph of the stomach contents
false (H.pylori live there)
microbial communities know as biofilms are interestin, buty they have no medical significance
false
microoorgaisms are unable to live in the colon because of the lack of oxygen
false (they are aerotolerant)
some of the bacteria used in bioremediation are naturally occurring, but other have been genetically engineered
true
many of the members of our indigenous microflora have the potential to cause disease
true
there could be as many as 100 trillion microorganisms tha tlive on us and in us
true
the most common organisms in the indigeouns microflora of the outh are various species of b-hemolytic streptococci
false (alph-streptococi)
microbes cause thousands of different types of plant diseases
true
most relationships between humans and microbes are beneficial rather than harmful
true
beneficial microoorgaisms far outnumber harmful ones
true