Endosymbiosis and the Origin of Life

Origin of Life and Endosymbiosis Research Activity

1. How did the process of the spontaneous origin of life end?

2. What are three main sources of evidence for endosymbiosis? a.

3. What evidence is there that evolution occurred this way (Mitochondria before Chloroplasts)?

4. Summarize, in your own words, the theory of endosymbiosis. 5. You must read one of the four listed articles below. The readings will become very technical at times – don’t worry! Instead, I want you to summarize the main idea of what your article is about. Then, select 3 quotes from the article that supplement what you already know or ADD to your understanding. After your quote, you should, in your own words, explain how the elaboration adds to your understanding.

Evolutionary Perspective on Amino Acids http://www.nature.com/scitable/topicpage/an-evolutionary-perspective-on-amino-acids-14568445

Evolution of Multicellularity http://www.nature.com/scitable/topicpage/volvox-chlamydomonas-and-the-evolution-of-multicellularity- 14433403

Origin of Mitochondria http://www.nature.com/scitable/topicpage/the-origin-of-mitochondria-14232356

Origin of Plastids http://www.nature.com/scitable/topicpage/the-origin-of-plastids-14125758

6. Below is a link to HHMI’s Click and Learn, “Deep History of Life on Earth.” Explore the site by clicking on the different key events throughout the history of life on Earth. Make sure to watch each of the videos, and take notes on each of the events that are described. http://www.hhmi.org/biointeractive/deep-history-life-earth