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Bacteria Voc. Terms
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41
Biology
10th Grade
04/02/2012

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Term
zoonosis
Definition
A disease that can be transmitted to humans from animals
Term
antibiotic resistance
Definition
Antibiotic resistance is a type of drug resistance where a microorganism is able to survive exposure to an antibiotic
Term
bioremediation
Definition
the branch of biotechnology that uses biological process to overcome environmental problems.
Term
prokaryote
Definition
A microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles
Term
peptidoglycan
Definition
Peptidoglycan, also known as murein, is a polymer consisting of sugars and amino acids that forms a mesh-like layer outside the plasma...
Term
methanogen
Definition
A methane-producing bacterium
Term
halophile
Definition
An organism, esp. a microorganism, that grows in saline conditions
Term
thermoacidophile
Definition
archaebacteria that thrive in strongly acidic environments at high temperatures
Term
bacillus
Definition
1.A disease-causing bacterium.
2.A rod-shaped bacterium.
Term
coccus
Definition
Any spherical or roughly spherical bacterium
Term
spirillum
Definition
A bacterium (genus Spirillum) with a rigid spiral structure, found in stagnant water and sometimes causing disease
Term
streptococcus
Definition
A bacterium of a genus (Streptococcus) that includes the agents of souring of milk and dental decay, and hemolytic pathogens causing...
Term
staphylococcus
Definition
A bacterium of a genus (Staphylococcus) that includes many pathogenic kinds that cause pus formation, esp. in the skin and mucous membranes
Term
gram-negative
Definition
(of bacteria) being of or relating to a bacterium that does not retain the violet stain used in Gram's method.
Term
gram-positive
Definition
of bacteria) being or relating to a bacterium that retains the violet stain used in Gram's method
Term
antibiotic
Definition
A medicine (such as penicillin or its derivatives) that inhibits the growth of or destroys microorganisms
Term
plasmid
Definition
A genetic structure in a cell that can replicate independently of the chromosomes, typically a small circular DNA strand in the cytoplas...
Term
capsule
Definition
1.A small case or container, esp. a round or cylindrical one.
2.A small, soluble case of gelatin containing a dose of medicine, swallowed whole
Term
pilus
Definition
hair: any of the cylindrical filaments characteristically growing from the epidermis of a mammal
Term
endospore
Definition
1.A resistant asexual spore that develops inside some bacteria cells.
2.The inner layer of the membrane or wall of some spores and pollen grains
Term
heterotroph
Definition
An organism deriving its nutritional requirements from complex organic substances.
Term
autotroph
Definition
An organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
Term
phototroph
Definition
An organism, typically a plant, obtaining energy from sunlight as its source of energy to convert inorganic materials into organic materials for use in cellular functions such as biosynthesis and respiration.
Term
chemotroph
Definition
Chemotrophs are organisms that obtain energy by the oxidation of electron donors in their environments. These molecules can be organic...
Term
obligate aerobe
Definition
An obligate aerobe is an aerobic organism that requires oxygen to grow. Through cellular respiration, these organisms use oxygen to...
Term
facultative anaerobe
Definition
A facultative anaerobic organism is an organism, usually a bacterium, that makes ATP by aerobic respiration if oxygen is present but is...
Term
obligate aerobe
Definition
An obligate aerobe is an aerobic organism that requires oxygen to grow. Through cellular respiration, these organisms use oxygen to...
Term
pathology
Definition
1.The science of the causes and effects of diseases, esp. the branch of medicine that deals with the laboratory examination of samples of...
2.Pathological features considered collectively; the typical behavior of a disease.
Term
exotoxin
Definition
A toxin released by a living bacterial cell into its surroundings
Term
endotoxin
Definition
A toxin present inside a bacterial cell and released when the cell disintegrates, and sometimes responsible for the symptoms of a...
Term
bacteriophage
Definition
A virus that parasitizes a bacterium by infecting it and reproducing inside it.
Term
retrovirus
Definition
Any RNA virus that inserts a DNA copy of its genome into the host cell in order to replicate, e.g., HIV.
Term
binary fission
Definition
Binary fission, or prokaryotic fission, is the form of asexual reproduction and cell division used by all prokaryotes, some protozoa,...
Term
endospore
Definition
1.A resistant asexual spore that develops inside some bacteria cells.
2.The inner layer of the membrane or wall of some spores and pollen grains.
Term
conjugation
Definition
1.The formation or existence of a link or connection between things, in particular.
2.The temporary union of two bacteria or unicellular organisms for the exchange of genetic material
Term
transformation
Definition
1.A thorough or dramatic change in form or appearance.
2.A metamorphosis during the life cycle of an animal.
Term
transduction
Definition
(genetics) the process of transfering genetic material from one cell to another by a plasmid or bacteriophage.
Term
pathogen
Definition
A bacterium, virus, or other microorganism that can cause disease.
Term
antibiotic
Definition
A medicine (such as penicillin or its derivatives) that inhibits the growth of or destroys microorganisms.
Term
gram stain
Definition
A staining technique for the preliminary distinction of bacteria between two categories (Gram-positive and Gram-negative).
Term
pili
Definition
(pilus) hair: any of the cylindrical filaments characteristically growing from the epidermis of a mammal
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