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Life's Structure and Function-Chapter 2
Cell vocabulary
15
Science
7th Grade
02/02/2012

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Term
phospholipid bilayer
Definition
the material which the cell membrane is made of
Term
cell membrane
Definition
the protective layer around all cells which regulates what goes in and out of the cell
Term
cell wall
Definition
rigid structure that encloses, supports and protects the cells of plants, algae, fungi, and most bacteria
Term
organelle
Definition
structure in the cytoplasm of a eukaryotic cell that can act as a storage site, process energy, move materials, or manufacture substances.
Term
cytoplasm
Definition
constantly moving gel-like mixture inside the cell membrane that contains heredity material and is the location of most of a cell's life processes
Term
nucleus
Definition
organelle that controls all the activities of a cell and contains hereditary material made of proteins and DNA
Term
chloroplast
Definition
green, chlorophyll-containing, plant-cell organelle that uses light energy to produce sugar from carbon dioxide and water
Term
mitochondrion
Definition
cell organelle that breaks down food and releases energy
Term
ribosome
Definition
small cytoplasmic structure on which cells make their own proteins
Term
ribosome
Definition
small cytoplasmic structure on which cells make their own proteins
Term
ER
Definition
cytoplasmic organelle that moves materials around in a cell and is made up of a complex series of folded membranes; can be rough or smooth
Term
RER
Definition
ER that has ribosomes attached
Term
Golgi body
Definition
organelle that packages cellular materials and transports them within the cell or out of the cell
Term
tissue
Definition
group of similar cells that work together to do one job
Term
organ
Definition
structure, such as the heart, made up of different types of tissues
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