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Information about cell organelles and organization of life.

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Terms to Know
Definitions
cell membrane   flexible outer layer that seperates a cell from its environment - controls what enters and leaves the cell  
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mitochondrion   the powerhouse of the cell, where respiration takes place  
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rough endoplasmic reticulum   has ribosomes that produce necessary proteins for the cell  
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smooth endoplasmic reticulum   acts as a pathway throughout the cytoplasm - lacks ribosomes  
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nucleus   headquarters or control center of the cell - contains chromosomes made of DNA  
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cytoplasm   gel-like material inside the cell - mostly water  
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vacuole   storage bubble that holds food, water and wastes - small in animal cells, large in plant cells  
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lysosome   suicide sacks - help dissolve harmful bacteria  
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centrioles   aid in cell division - animal cells only  
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cell wall   provide support and protection for a plant cell  
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chloroplast   contain chlorophyll - traps sunlight to make food - plant cells only  
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