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Unit 2

Human Organ Systems and Homeostasis

TermDefinition
Homeostasis body's ability to keep itself the same on the inside
Digestive System System made up of tissues and organs that converts the food we eat into nutrients
Circulatory System System made up tissues and organs that carries needed substances to cells and removes waste products from tissues.
Respiratory System System made up of tissues and organs that supply oxygen to the body to help you breathe.
Excretory System System made up of tissues and organs whose job it is to eliminate waste through excretion.
Nervous System System made up of tissues and organs that helps the different parts of our body communicate and allows our brain to control our body and understand what is going on in the outside world.
Skeletal-Muscular System System made up of tissues and organs that protect, support, and allow our bodies to move.
Cellular Respiration Process that occurs mainly in the mitochondria where oxygen and glucose are converted to ATP, carbon dioxide, and water. This energy is used to fuel life processes.
Cellular Respiration Reactants oxygen (O2) and glucose (sugar, C6H12O6)
Cellular Respiration Products Energy (ATP), carbon dioxide (CO2), and water (H2O)
Cell basic building block of life
Organelle "Little organs" within cells
Mitochondria powerhouse of the cell, converts nutrients to energy
Cell Membrane membrane surrounding the outside of the cell, controls what goes in and out of the cell
Nucleus The control center (brain) of the cell
Tissue group of the same kind of cells with the same function
Organ group of same kind of tissues with the same function
Organ System Group of organs with the same function
Stimulus Anything that causes a physical or behavioral response such as a sound, change in temperature, or signal from the body
Reaction An action performed or feeling in response to an event/stimulus
Small Intestine Site of nutrient absorption in the digestive system where broken-down nutrients enter the bloodstream for use by cells
Created by: Mrs. Dormitzer
 

 



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