Micro Final Test Questions – Flashcards
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Unlock answersAntigen |
Any substance that causes antibody formation; also called an immunogen. |
Antibody |
A protein produced by the body in response to an antigen, and capable of combining specifically with that antigen. |
Immunity |
The ability, obtained during the life of the individual, to produce specific antibodies and T cells. |
Catabolism |
All decomposition reactions in a living organism; the breakdown of complex organic compounds into simpler ones. |
Chemotaxis |
Movement in response to the presence of a chemical. |
Chemoautotroph |
An organism that uses an inorganic chemical as an energy source and CO2 as a carbon source. |
Noncommunicable Disease |
A disease that is not transmitted from one person to another. |
Chemohetertroph |
An organism that uses organic molecules as a source of carbon and energy. |
Chronic Disease |
An illness that develops slowly and is likely to continue or recur for long periods.
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Decomposer |
Break down from larger to smaller
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Phagocytosis |
The ingestion of particles by eukaryotic cells.
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Pathology |
The scientific study of disease. |
Eukaryotes |
A cell having DNA inside a distinct membrane-enclosed nucleus |
Endemic Disease |
A disease that is constantly present in a certain population.
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Susceptibility |
The lack of resistance to a disease. |
Resistance |
The ability to ward off diseases through innate and adaptive immunity. |
Hummoral Immunity |
- Immunity produced by antibodies dissolved in body fluids, mediated by B cells; also called antibody-mediated immunity.
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symbiosis |
The living together of two different organisms or populations |
selective growth medium |
A culture medium designed to suppress the growth of unwanted microorganisms and encourage the growth of desired ones.
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Psychrophile |
An organism that grows best at about 15°C and does not grow above 20°C; a cold-loving microbe |
Secondary infection |
An infection caused by an opportunistic microbe after a primary infection has weakened the host’s defenses. |
ionic bond |
A chemical bond formed when atoms gain or lose electrons in the outer energy levels |
immunotherapy |
- Making use of the immune system to attack tumor cells, either by enhancing the normal immune response or by using toxin-bearing specific antibodies. See also immunotoxin |
taxonomy |
The science of the classification of organisms. |
lysis |
(1) Destruction of a cell by the rupture of the plasma membrane, resulting in a loss of cytoplasm. (2) In disease, a gradual period of decline. |
missense mutation |
A mutation that results in the substitution of an amino acid in a protein. |
metabolism |
- The sum of all the chemical reactions that occur in a living cell.
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condidiopore |
- An asexual spore produced in a chain from a conidiophore.
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obligate halophile |
An organism that requires high osmotic pressures such as high concentrations of NaCl. |
optimal growth |
best growing environment |
exothermic infection |
release of energy in the form of heat |
commensalism |
A symbiotic relationship in which two organisms live in association and one is benefited while the other is neither benefited nor harmed. |
systemic infection |
An infection throughout the body. |
replication fork |
The point where DNA strands separate and new strands will be synthesized.
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pathogenesis |
The manner in which a disease develops |
mutualism |
A type of symbiosis in which both organisms or populations are benefited. |
resistance |
The ability to ward off diseases through innate and adaptive immunity. |
obligate aerobe |
An organism that requires molecular oxygen (O2) to live. |
obligate anaerobe |
An organism that does not use molecular oxygen (O2) and is killed in the presence of O2.
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syndrome |
specific group of signs or symptoms that accompany a disease.
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transformation |
(1) The process in which genes are transferred from one bacterium to another as “naked” DNA in solution. (2) The changing of a normal cell into a cancerous cell. |
thermal death point |
The temperature required to kill all the bacteria in a liquid culture in 10 minutes.
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signs |
A change due to a disease that a person can observe and measure.
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symptoms |
A change in body function that is felt by a patient as a result of a disease. |
substrate |
Any compound with which an enzyme reacts.
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sporozoite |
A trophozoite of Plasmodium found in mosquitoes, infective for humans. |
epidemiology |
The science that studies when and where diseases occur and how they are transmitted.
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mortality rate |
The number of deaths resulting from a disease in a given period of time in relation to the total population.
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mobility rate |
Number of people affected/total population in a given time period |