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Unit 4
hu
14
Biology
9th Grade
11/27/2012

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Term
Cell wall
Definition
The cell wall surronds different types of cells. It is located outside the cell membrane and provides these cells with structural support and protection[image]
Term
Cell membrane
Definition
 The basic function of the cell membrane is to protect the cell from its surroundings
Term
Chromatin
Definition
Chromatin is the combination of DNA and proteins that make up the contents of the nucleus of a cell. The primary functions of chromatin are: to protect DNA.
Term
Cytoplasm
Definition
The cytoplasm is the gel-like substance residing within the cell membrane holding all the cell's internal sub-structures (calledorganelles), outside the nucleus
Term
Rough Endoplasmis Reticulum
Definition
The rough ER appears rough due to the presence of ribosomes on the membrane surface. 
Term
Smooth Endoplasmic Reticulum
Definition
The functions of RER are providing an internal structural skeleton to support the cell's shape, as storage
Term
Golgibody 
Definition
Term

Vacuoles

 

Definition
Term
Lysosomes
Definition
Term
Cytoskeleton
Definition
Term
Mitochondria
Definition
Term
Choroplasts
Definition
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