LECTURE 1 QUIZ Flashcards
(26 cards)
is the study of living organisms
biology
is an advance biology course dealing with the study of MICROBES , which are extremely small (microscopic) living organisms and certain nonliving entities
microbiology
are known as cellular microbes or microorganisms; examples BACTERIA, ARCHAE, SOME ALGAE, PROTOZOA, FUNGI
living microbes
are known as acellular or infectious particles; viroids, prions, and viruses
nonliving microbes
microbes are _____ (they are found virtually everywhere
ubiquitous
prions and viruses
acellular infectious agents
cellular microorganisms
prokaryotes (archaea, bacteria) eukaryotes (algae, fungi, protozoa)
the microbes that cause diseases are sometimes referred to as
germs
the scientific term for disease-causing is
pathogens
microbes hat do not cause disease are called ____ (majority of microbes)
nonpathogens
microbes that live on and in our bodies are referred to as our _____
indigenous microbiota
are microbes that can cause disease, but usually do not; they can be thought of as microbes that are awaiting the opportunity to cause disease
opportunistic pathogens
pathogens cause two categories of disease
infectious diseases and microbial intoxication
it serves as food for tiny animals; they are important links in food chains
algae and bacteria
the use of living organisms or their derivatives to make or modify iuseful products or processess is called ______
biotechnology
candidates for the first microorganisms on earth are ___________
archaea and cyanobacteria
earliest known account of pestilence occurred in egypt in about
3180 BC
- the first person to see live bacteria, the father of microbiology,bacteriology, protozoology.
- a fabric merchant, surveyor, wine assayer and a minor city official in delft, holland.
- he ground tiny g
ass lenses, which he mounted in small metal frames
anton van leeuwenhoek
- by 1975 an english scientist used microscopic observations to support the theory of abiogenesis
- he boiled meat broth for several minutes in a loosely sealed flask
-after boiling, he saw under the microscope that the broth had no living things - he examined the flash and found microorganisms
john needham
proved that maggots did not come from a piece of meat
francesco redi
heated the soup before culturing
lazaro spallanzani
- french chemist who made numerous contributions to microbiology
- investigated different fermentation products
- developed the pasteurization process
- discovered life forms that could exist without oxygen (anaerobes)
- developed vaccines, like rabies
- HE HEATED IT TO KILL ALL LIFE (long s)
Louis pasteur (1822-1895)
- german physician who made numerous contribution to microbiology
- made significant contri to the germ theory of disease
- discovered that bacillus anthracis produce SPORES
- developed METHODS OF FIXING AND STAINING BACTERIA AND CULTIVATE BACTERIA
robert koch (1843-1910)
this scientific procedure published in 1884, and become known as ______ (proved that specific microbe is the cause of specific infectious disease) (louis pasteur and robert koch)
koch’s postulates