Presentation is loading. Please wait.

Presentation is loading. Please wait.

Endosymbiotic Theory.

Similar presentations

Presentation on theme: "Endosymbiotic Theory."— Presentation transcript:

1 Endosymbiotic Theory

2 The Endosymbiotic Theory
Review: What is a theory? What is the difference between prokaryotic and eukaryotic cells? The endosymbiotic theory is the idea that a long time ago, prokaryotic cells engulfed other prokaryotic cells by endocytosis. This resulted in the first eukaryotic cells. First proposed by Lynn Margulis Explains the origin of eukaryotic cells Explains the origin of certain membrane-bound organelles

3 What Exactly Happened? Ancient Prokaryotes
Chloroplast Plants and plant-like protists Ancient Prokaryotes Heterotrophic bacteria Nuclear envelope evolving Photosynthetic bacteria Mitochondrion Primitive Autotrophic (Photosynthetic) Eukaryote Animals, fungi, and animal-like protists Ancient Heterotrophic Prokaryote Primitive Heterotrophic Eukaryote

4 Membrane-Bound Organelles
Mitochondria = membrane-bound organelle that produces energy for the cell Chloroplast = membrane-bound organelle that captures sunlight and uses it to make food for the cell

5 Evidence in support of the endosymbiotic theory:
Similarities between mitochondria, chloroplasts, & prokaryotes: Circular DNA Ribosomes Binary fission

6 Check these out: Animation: Student form with fill-in’s: Worksheet Notes\ENDOSYMBIOSIS student fill-ins.docx

Download ppt "Endosymbiotic Theory."

Similar presentations

Ads by Google