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Cells
cell parts
19
Biology
9th Grade
12/01/2011

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Cards

Term
Nuclear Envelope
Definition
A double membrane surrounding the nucleus
Term
Nucleolus
Definition
The site in the nucleus where ribosomal RNA is made
Term
Mitochondria
Definition
The organelle that transfers energy from organic compounds to ATP
Term
Ribosomes
Definition
Made of two subunits and responsible of making proteins
Term
Rough ER
Definition
A system of interconnected sacs with ribosomes attached
Term
Smooth ER
Definition

Produces steroids and hormones.  

Builds lipids

Term
Golgi Apparatus
Definition
Helps direct and transport proteins in the cell
Term
Lysosomes
Definition
Vesicles that contain digestive enzymes
Term
Peroxisomes
Definition
Break down harmful free radicals in the cell
Term
Centrioles
Definition
Short cylinders of microtubules used in cell division
Term
Cilia
Definition
Little hairs that assist in movement
Term
Flagella
Definition

A long whip-like structure used for motion that is

found in sperm

Term
Nucleus
Definition
Controls most of the cell processes and contains the hereditary information of DNA
Term
Plasma Membrane
Definition
A thin flexible barrier around the cell that regulates transport
Term
Cell Wall
Definition
To protect and provide support for the cell
Term
Chloroplast
Definition

Gives plants its green color and makes food.

Provides plants with energy and releases energy

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