Warm-up https://www.ted.com/talks/david_christian_big_history?language=en
Warm-up What does David Christian mean when he talks about Goldilocks conditions? Why are they important?
Endosymbiosis
Definition- The endosymbiotic theory describes how a large host cell and ingested bacteria could easily become dependent on one another for survival, resulting in a permanent relationship.
Amoeba eats paramecium https://www.youtube.com/watch?v=pvOz4V699gk Amoeba eats paramecium
Paramecium (extra info) http://abc13.com/news/exclusive-houston- teen-dies-of-brain-eating-amoeba-/1427624/
https://www.youtube.com/watch?v=9i7kAt97XYU Endosymbiosis
Osmosis is the spontaneous net movement of solvent molecules through a semi-permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides. Osmosis-
Gummy bear osmosis lab Set up lab note book- Each lab will have six sections- one for each step of the scientific method Procedure Hypothesis Materials Results Conclusion
Purpose- to observe osmosis in action by placing gummy bears in solutions of various solute concentrations We will place one gummy bear in a salt water solution and one gummy bear in tap water. We will also have a control gummy bear that will not be placed in water.
Hypothesis – Come up with one
Materials- gummy bears beakers water salt ruler scale
Procedures- Write as I explain
Give three points of evidence supporting the theory that mitochondria and chloroplasts may have arisen from prokaryotic organisms.