Standard #: SC.912.L.14.5


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Explain the evidence supporting the scientific theory of the origin of eukaryotic cells (endosymbiosis).


General Information

Subject Area: Science
Grade: 912
Body of Knowledge: Life Science
Standard: Organization and Development of Living Organisms -

A. Cells have characteristic structures and functions that make them distinctive.

B. Processes in a cell can be classified broadly as growth, maintenance, reproduction, and homeostasis.

C. Life can be organized in a functional and structural hierarchy ranging from cells to the biosphere.

D. Most multicellular organisms are composed of organ systems whose structures reflect their particular function.

Date Adopted or Revised: 02/08
Date of Last Rating: 05/08
Status: State Board Approved

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Related Access Points

Access Point Number Access Point Title
SC.912.L.14.Su.2 Recognize that cells have different parts and each has a function.
SC.912.L.14.In.3 Identify that parts of cells (organelles) can combine to work together.
SC.912.L.14.Pa.2 Recognize that small parts of a living thing can work together.


Related Resources

Original Student Tutorial

Name Description
Endosymbiosis

Explore the Theory of Endosymbiosis which links the origins of mitochondria and chloroplasts in eukaryotes with prokaryotic ancestors. 

Video/Audio/Animation

Name Description
Endosymbiosis Paul Andersen explains how eukaryotic cells were formed through a process of endosymbiosis. He describes how aerobic bacteria became mitochondria and cyanobacteria became chloroplasts. He mentions an example of symbiosis that occurs today and mentions the importance of Dr. Lynn Margulis in the development of this modern theory.

Student Resources

Original Student Tutorial

Name Description
Endosymbiosis:

Explore the Theory of Endosymbiosis which links the origins of mitochondria and chloroplasts in eukaryotes with prokaryotic ancestors. 



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