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40 Cards in this Set

  • Front
  • Back
Robert Koch
discovered anthrax
Koch's postulates
1. show that the agent is present in an individual with the disease
2. grow the agent as a pure culture outside the host
3. innoculate a healthy individual with the pure culture, and the individual becomes sick.
4. reisolate the agent from the individual
Steps in Gram Stain
1. crystal violet (primary stain)
2. iodine (mordant)
3. ethonal (decolorizing)
4. safranin(counterstain)
short hallow tubes
not as long as flagella, used to help hold on to things
1. made up of protien
2. used for movement
one flagella
flagella all over the place
flagella on both sides
Monomers: Amino Acids
Examples: Sucrose, Amylose, Cellulose
Function: Engery Storage
Monomers: Amino Acids
Examples: Enzyme, Collagen,
Function: everything
Monomers: Fatty acids, Glycerol, Cholesterol
Examples: PHospholipids, Steroids, Monomers
Function: Stores Info
Nucleic Acids
Monomers: Nucleotide- Sugar, phosphate
Examples: DNA, RNA, ATD, NADH
Function Info, energy
Robert Hooke
first microscopist to describe fungi
Robert Koch
developed a series of postulates that are used to tell if a microorganizm is the causative agent of a disease
Used the first synthetic chemotherapeutic agent
Discovered penicillian
first to observe cells in plant material and to name them.
proved that microorganisms cause disease
first to employ disinfectants in surgical procedures
disproved that microorganisms can cause disease
van Leeuwenhoek
first to observe bacteria
Gram +
Reaction: purple
Gram +
Cell Wall:
* no outer membrane
* 30-80 nm thick
* techolic acid in cell wall
Gram +
no paeriplasmic space
Gram -
Reaction: pink
Gram -
Cell Wall:
* outer membrane
* 6-12 nm thick
* no techolic acid in cell wall
Gram -
Periplasmic space
cell wall
made of Peptidoglycan
selective media
contain substances that either favors the growth of particular microorganisms or inhibits the growth of unwanted ones
differential media
formulated such that either the presence of visible changes in the medium or differences in the appearances of colonies helps microbiologists differentiate among different kinds of bacteria growing on the medium.
Eosin Methylene Blue (EMB) Augar
*selective media for gram negative
*selective for lactose fermenting bacteria
Mannitol Salt Agar (MSA)
*differentiate staphylococcus auneus and staphylococcus epidermus
*selective and differential
Blood Agar
*differential for hemolytic microorganisms
cell wall
in prokaryotic and some eukaryoitc cells, structural boundary, composed of polysaccharide chains that provides shape and support against osmotic pressure.
any unicellular microorganism that lacks a nucleus. includes bacteria and archaea.
Any organism made up of cells containing a nucleus composed of genetic material surrounded by a distinct membrane. Classification includes animals, plants, algae, fungi, and protozoa.
Prokaryotic microorganisms typically having cell walls composed of peptidoglycan
tiny infectious acellular agent with nucleic acid surrounded by proteinaceous capsomers that form a coat called a capsid.
Single-celled eukaryotes that lack a cell wall and are similar to animals in thier nutritional needs and structure.