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Cell Structure
Cell Structure
9
Biology
10th Grade
11/16/2010

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Term
Cell
Definition
  • The basic unit for all forms of life.
  • The basic structual and functional in living things
Term
CELL THEORY
Definition
  • One of the fundemental concepts of biology.
  • All living things are composed of cells.
  • New cells are produced from existing cells.
Term
CELL MEMBRANE
Definition
  • Is a thin, flexible barrier around the cell.
  • support and protect cells.
  • Allows to interact with surroundings.
Term
CELL WALL
Definition
  • A strong layer around the cell membrane.
  • support and protect cells.
  • Allows to interact with surroundings.
Term
NUCLEUS
Definition
  • A large structure that cotains the cells genetic material and controls the cells activities.
Term
CYTOPLASM
Definition
  • The material inside the cell membrane(exculding the nucleus).
  • Contains many important structures.
Term
PROKARYOTE
Definition
  • Are smaller and simpler than cells of eukatyotes.
  • have cell membrane and cytoplasm but no nuclei.
  • Unicelluar have DNA
Term
EUKARYOTES
Definition
  • They contain a nuclei.
  • Also a cell membrane and cytoplasm.
Term
ORGANELLES
Definition
  • Specialized Structures.
  • Perform important celluar functions.
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