microbiology history
what started microbiology?
microbiology started with the microscope being invented
what’s a dichotomous key
an important scientific tool, used to identify different organisms, based the organism's observable traits
how does bacteria reproduce?
through a process called binary fission
what is normal flora
microorganisms that live on another living organism (human or animal) or inanimate object without causing disease
what is a pathogen
a pathogen is any organism that can produce disease
who discovered the microscope?
Antonie van Leeuwenhoek
what is a gram negative and gram positive test?
it’s a test to see whether the bacteria is gram negative or gram positive
yes the single divides into two and reproduce
where is “normal flora”
we are born with normal flora and covered with it
what is another name for pathogens
it can be referred to as an “infectious agent” or “germ”
who was Antonie van Leeuwenhoek
he was a Dutch draper whose hobby was lens grinding and making microscopes
what color is a gram-negative test?
it can either be pink or red
are there other types of reproduction
there are some other unusual forms and patterns that bacteria uses to reproduce
how much normal flora do we have
there is approximately one hundred trillion bacteria that form into normal flora
how many types of pathogens are there
4
what was he the first to do
he was the first to provide proper documentation of his observations
what color is a gram positive test?
when it stays purple it’s gram positive
what is binary fission
binary fission is where the cells split into two or more and regenerate more
can you change normal flora
normal flora begins to change after admission to a hospital or long-term care facility
what are the most common pathogens
viruses, bacteria, fungi and parasites
what is microbiology
it is the study of microorganisms
how else can you see bacteria
through a microscope
when does binary fission happen
typically observed in prokaryotes and a few single-celled eukaryotes
what is the process of normal flora changing
the antibiotics given after 4 days of admission can change the normal flora
how does a pathogen “enter” the body
it can enter through any opening of the body, nose, mouth, eyes, open wounds etc…