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The Digestive System
Biology
14
Biology
10th Grade
01/05/2010

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Term
Nutrition
Definition
How to obtain materials in the environment and to convert them to a useable form.
Term
Nutrients
Definition
Usable part of food
Term
What are Nutrients mainly used for?
Definition
energy
build repair cells
regulate metabolism
Term
Disease
Definition
any condition that prevents the body from functioning normally, causing the body to fail to maintain homeostatis
Term
Sickle cell anemia
Definition
hereditary disease. Hemoglobin is flawed and red blood cells get twisted and out of shape.
Term
Hemophilia
Definition
blood does not clot
Term
Homeostatis
Definition
balance
Term
Parasites, pathogens, bacteria, viruses
Definition
organisms that interfere with homeostatis
Term
immune response
Definition
an antibody which reacts against an antigen
Term
Natural killer cells
Definition
T-cells detect infected cells with the antigen in it. They attach to the cell membrane of your infected cell and punch a hole in it injecting it with poison. Infected cells are killed.
Term
antigen
Definition
foreign molecues
Term
antibody
Definition
fights antigens
Term
phagocytes
Definition
type of white blood cell
Term
lymphocyte
Definition
type of white blood cell
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