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Bannon/ Science Vocabulary
vocabulary/ cell, diffusion...
9
Science
5th Grade
01/14/2011

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Term
Cell
Definition
The basic unit of structure and function of all living things.
Term
Osmosis
Definition
the movement of water and dissolves materials through cell membranes. This is how cells get most of their water.
Term
Diffusion
Definition
Particles of a substance move from an area where there are a lot of particles of the substance to an area where there are fewer particles of the substance.
Term
Tissue
Definition
Similar cells that work together to perform a specific function. There are 4 kinds of tissues in humans.
Term
Cell Membrane
Definition
This is what holds the parts of the cell together.
Term
Nucleus
Definition
This is enclosed in its own cell membrane. It determines the cells activities.
Term
Cytoplasm
Definition
This is a jelly-like substance containing many chemicals to keep the cell functioning.
Term
System
Definition

Organs that work together to perform a function.

A human has 10 major body systems. 

Term
Organ
Definition
Each organ in an animals body is made of several kinds of tissues that work together.
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