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Prokaryotes & Eukaryotes

Prokaryotes are unicellular organisms that lack organelles or other internal membrane-bound structures. Prokaryotic cells preceded eukaryotic cells on the evolutionary timeline. Eukaryotes are organisms whose cells have a nucleus enclosed within membranes,


Lesson 1 (or “Day 1”) Material
Lesson 2 (or “Day 2”) Material
Lesson 3 (or “Day 3”) Material
Lesson 4 (or “Day 4”) Material

 

3:44 Prokaryotic Vs. Eukaryotic Cells

3:15 Prokaryotic vs Eukaryotic: The Differences | Biology for All | FuseSchool

5:34 Cell Division and the Cell Cycle

Compare Contrast and Debate

Kick-Off Debate Background: 

Wikipedia Extract: Prokariotic cells generally do not have a cell nucleus, nor cell organelles, however a small number of exceptions have been found. Prokaryotes are unicellular. They are either bacteria or archaea. Prokaryotes are cells which do not have a cell nucleus, and lack other things eukaryotes (cells with a true nucleus) have.

About 100 years ago, a scientist (Lynn Marguilis) propoposed the theory of endosymbiosis – a relationship in which one organism lives within the body of another. Both organisms benefit from the relationship. Marguilis proposed that multicellular eukaryotic cells may have evolved from simple prokaryotic cells consuming other cells similar to modern-day mitochondria and chloroplasts in more complex cells.

  • Position A: Endosymbiosis has not yet been demonstrated in this way in a controlled setting. It should not be discussed as a possibility until shown to have taken place in a lab.
  • Position B:The theory should not just be discussed, but should be explored more deeply as it is a highly plausible explanation.

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Special Notes and Notices

Instructor Emphasis:

  • Science & Engineering Practice: Engage in scientific argument from evidence.
  • Cross-Cutting Concept: Structure and Function.

Emphasize HS-LS2-3  Construct and revise an explanation based on evidence for the cycling of matter and the flow of energy in aerobic and anaerobic conditions.


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