Animal Eukaryotic Cell Illustration


Animal Cell Parts, Functions 
& Diagrams


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All living things are made of cells, the smallest units of life, and there are only two main types of cells:

  • prokaryotes, which are the primitive, simple cells of bacteria and their bacteria-like cousins archaea

Article Summary: Animal cells are a type of eukaryotic cell with a nucleus, membrane-bound organelles and no cell wall. Here is a summary of their structure and function.
Animal Cell Structures, Functions & Diagrams
Labeled Diagram Animal Cell
 Prokaryotic Cell Illustration
Prokaryotic cells (above) are much simpler in structure than eukaryotic cells (below).
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  • eukaryotes, which include the more advanced cells of animals, plants, fungi, protozoans, algae, and slime & water molds

Eukaryotic cells share many similar characteristics, including some of the following structures, which can be found in the cells of animals:

Cell Envelope & External Structures of Animal Cells
  • Glycocalyx: Some animal and protozoan cells have this sticky outer layer anchored to the plasma membrane. Gycocalyces help animal cells stick to each other and protect cells from dehydration. This layer is not present in eukaryotic cells that have a cell wall, such as plants, algae and fungi.

  • Cilia and flagella: Constructed of microtubules covered with plasma membrane (analogous to an arm or leg bone covered in skin), these external appendages, present in some animal cells, aid in cell movement and in moving materials around the outside surface of the cell.

  • Plasma membrane: All cells have plasma membranes. In eukaryotic cells, this barrier between the inside and the outside of the cell is made mainly of phospholipids, proteins and sterols.

Click here for a practice assignment on identifying the parts of an animal cell.
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Endomembrane System of a Eukaryotic Cell, Mariana Ruiz
Continued ... 
Cell Endomembrane System
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​Page last updated: 8/2015
Instructor's Corner

FREE Printable 
Animal Cell Diagram
assignment to help you remember prokaryotes parts and pieces.
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 Eukaryotic Cell Illustration