Biology Unit 1 Section 1 - Eukaryotic Cells & Organelles


Organisms - Prokaryotes & Eukaryotes

  • Prokaryotic organisms are prokaryotic cells (single-cellular organisms) 
  • Eukaryotic organisms are made of up eukaryotic cell
  • Both types of cells contain organelles. Organelles are parts of cells - each one4 has a specific function
  • Plant and Animal Cells are both Eukaryotic

Animal Cell Organelles :

  • Plasma Surface Membrane
  • Rough endoplasmic reticulum
  • Nucleolus
  • Nucleus
  • Smooth edoplasmic reticulum
  • Smooth edoplasmic reticulum
  • Lysosome
  • Ribosome
  • Nuclear envelope
  • Golgi apparatus
  • Cytoplasm
  • Mitochondrion
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Functions of Cell Organelles

Plasma (cell surface) membrane -

  • Regulates the movement of substance into and out of the cell.
  • Contains recepter molecules on it, which allow it to respond to chemicals like hormones.

Cell Wall -

  • A rigid structure that surrounds plant cells. It;s made mainly of carohydrate cellulose
  • Supports plant cells


  • A large organelle surrounded by a nuclear envelope (double membrane), which contains many pores
  • The nucleus contains chrmatin and often a structure the nucleolus 
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