Review… Hypotonic Solution: more solute _______ the cell

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Presentation transcript:

Review… Hypotonic Solution: more solute _______ the cell What happens to the cell? Hypertonic Solution: More solute _______ the cell

PRO vs. EUK Differences? Bacteria are…. Plant and Animal are… Who discovered Cells?

Bacteria/Virus Are viruses living or non-living? Are Bacteria living or non-living? Are Bacteria larger or smaller than viruses?

Bacteria Cell

Cell Theory & Endosymbiosis

The Cell First discovered by Robert Hooke in 1665 Pieces of cork – he actually saw the cell walls of the plant cells

Cell Theory All living organisms are composed of 1 or more cells. Cells are the basic unit of structure and organization of all living organisms. Cells arise only from previously existing cells, with cells passing copies of their genetic material on to their daughter cells.

Endosymbiont Theory This theory says that certain unicellular organisms engulfed other cells. These engulfed cells become organelles in the host cell. Lead to the diversity of Protist (Plant-like, Animal-like, Fungus-like) First proposed in the 1960’s by Lynn Margulis

Evidence of Endosymbiosis Pg. 576 The first Eukaryotes acquired mitochondria & chloroplast by engulfing a prokaryote Mitochondria & chloroplast have their own DNA & ribosomes b/c they were once Prokaryotic cells.

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