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Unit #2 Cells
Science
14
Science
7th Grade
09/10/2017

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Term
Cell
Definition
The basic unit of structure and function in living organisms
Term
Organelle
Definition
A tiny cell structure that carries out a specific function within the cell
Term
Cell Membrane
Definition
The outside boundary of a cell; controls which substances can enter or leave the cell
Term
Cell Well
Definition
A rigid layer of nonliving material that surrounds the cells of plants and some other organisms
Term
Nucleus
Definition
The control center of the cell that directs the cell’s activities and determines the cell’s characteristics
Term
Cytoplasm
Definition
The region of a cell located inside the cell membrane (between the cell membrane and nucleus) made of a gel-like material where the cell organelles float
Term
Mitochondria
Definition
Rod-shaped cell structures that produce most of the energy needed to carry out the cell’s functions
Term
Chloroplast
Definition
A structure in the cells of plants that captures energy from sunlight and uses it to produce food
Term
Vacuole
Definition
A water-filled sac inside a cell that acts as a storage area
Term
Cell Theory
Definition
A widely accepted theory that all living things are made of cells
Term
Structure
Definition
Describes how an object is made and what it looks like
Term
Function
Definition
Describes what an objects specific job is
Term
Biotic
Definition
Means "living." Refers to all things living
Term
Abiotic
Definition
Non-living. Anything non-living is referred to as abiotic. Rocks, signs, etc.
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