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Biology Chapter 40
Vocabulary Words
24
Biology
10th Grade
03/05/2009

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Term
Antibiotic
Definition
Compound that blocks the growth and reproduction of bacteria
Term
Disease
Definition
Any change, not injury, that disrupts the normal functions of the body
Term
Pathogen
Definition
Disease-causing agent
Term
Germ Theory of Disease
Definition
Idea that infectious diseases are caused by germs
Term
Koch's Postulates
Definition
Series of guidelines used to identify microorganisms that causes a specific disease
Term
Vector
Definition
Animal that carries pathogens from person to person
Term
Immunity
Definition
Ability of the body to resist a specific pathogen
Term
Inflammatory Response
Definition
Nonspecific defense reaction to tissue damaged caused by an injury or infection
Term
Fever
Definition
Elevated body temperature that occurs in response to infection
Term
Interferon
Definition
One of a group of proteins that help cells resist viral infection
Term
Immune Response
Definition
the body's specific defenses that attack a disease-causing agent
Term
Antigen
Definition
Substance that triggers an immune response
Term
Humoral Immunity
Definition
Immunity against antigens and pathogens in the body fluids
Term
Cell-mediated immunity
Definition
Immunity against abnormal cells and pathogens inside living cells
Term
Antibody
Definition
Protein that helps destroy pathogens
Term
Vaccination
Definition
Injection of a weakened or milk form of pathogen to produce immunity
Term
Active Immunity
Definition
Immunity produced by exposure to an antigen, as a result of the immune response
Term
Passive Immunity
Definition
Short-term immunity caused when antibodies produced by other animals for a pathogen are injected into the body
Term
Allergy
Definition
Overreaction of the immune system to antigens
Term
Histamine
Definition
Chemical released by activated mast cells that increases the flow of blood and fluids to the surrounding area
Term
Asthma
Definition
Chronic respiratory disease in which the air passageways become narrower than normal
Term
Risk Factor
Definition
Anything that increases the change of disease or injury
Term
Tumor
Definition
Mass growing of tissue
Term
Carcinogen
Definition
Chemical compound known to cause cancer
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