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Chapter 3 Section 2 Mahon
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14
Biology
9th Grade
10/07/2010

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Term
Cell theory
Definition
theory that states that all living things are made up of cells
Term
Cell membrane
Definition
layer that covers a cell's surface. protects the inside of the cell
Term
cytoplasm
Definition
the region of the cell within the membrane
Term
cytoskeleton
Definition
the network of protein that plays an essential role in cell movement shape and division
Term
ribosome
Definition
a cell organelle composed of RNA and protein
Term
prokaryote
Definition
an organism that consists of a single cell that doesn't have nucleus or cell organelles
Term
cell wall
Definition
protects the cell membrane and supports the cell
Term
flagellum
Definition
a long hairlike structure that grows out of a cell and enables it to move
Term
euraryote
Definition
organism made up of cells that have a nucleus enclosed by a membrane
Term
nucleus
Definition
organelle that contains the cells DNA
Term
organelle
Definition
one of the small bodies that are found in the cytoplasm of a cell and that are specialized to perform a specific function.
Term
cilium
Definition
hairlike structure that arranged in tightly packed rows that projects from the surface of some cells
Term
phospholipid
Definition
a lipid that contains phosphorus and that is a structural componant in cell membranes
Term
lipid bilayer
Definition
basic structure of a biological membrane composed of of two layers
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