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200 Super Sci Facts


The process by which nutrient molecules pass through the walls of the digestive system into the blood. absorption
immunity that occurs when a person's own immune system produces antibodies in response to the presence of a pathogen active immunity
the movement of materials through a cell membrane using energy active transport
a physical dependence on a substance; an intense need by the body addiction
the state of development between childhood and adulthood when children become adults physically and mentally adolescence
a chemical that gives a quick burst of evergy and causes changes in the body to prepare a person for quick action adrenaline
a disease caused by a virus that attacks the immune system AIDS - Acquired Immunodeficiency Syndrome
a sbustance that causes an allergy allergen
a disorder in which the immune system is overly sensitive to a foreign substance allergy
tiny air sacs of lung tissue specialized for the movement of gases between the air and the blood alveoli
small organic compounds that are linked together chemically to form large protein molecules; there are 20 common types amino acids
a chemical that kills bacteria or slows their growth without harming body cells antibiotic
a chemical produced by a B cell of the immune system that destroys a specific kind of pathogen antibody
a molecule on a cell that the immune system can recognize either as part of the body or as coming from the outside the body antigen
the opening at the end of an organism's digestive through which wastes exit anus
the largest artery in the body aorta
a blood vessel that carries blood away from the heart artery
the reproductive process that involves only one parent and produces offspring that are identical to the parent asexual reproduction
a disorder in which the respiratory passages narrow significantly enough to make breathing difficult asthma
a condition in which arterial walls thicken as a result of the buildup of fatty materials atherosclerosis
an upper chamber of the heart that receives blood from the body atrium
the group of nerves that controls involuntary actions such as breathing, heartbeat and digestion autonomic nervous system
a threadlike extension of neuron that carries nerve impulses away from the cell body axon
a lymphocyte that produces chemicals that help destroy a specific kind of pathogen B cell
a substance produced by the liver that breaks up fat particles Bile
Created by: andiroyce