Eukaryotic Cell
Structure
What do my classmates and I already know about
eukaryotic cells? 12/13/16
 Eukaryotic cells have a nucleus
 Unicellular
 Multicellular
 Eukaryotic cells are in plants & animals
 Can’t see it w/out a device
 Humans have eukaryotic cell
 Eukaryotic is a domain
 Unicellular organisms can be eukaryotic or
prokaryotic
 All living things are made of cells
What is the Cell Theory and Hx of microbiology?
1/3/17
 Cell Theory= common explanation re: the
relationship btwn living things & cells
 Cell Theory states:
1) All living things are made of cells
2) Cells are the smallest living thing
(microscopic)
3) Cells come from other cells
 Schleiden, Schwann & Virchow came up w/cell
theory circa 1850’s
 Invention of the microscope made the CT
possible…circa 1600ish
 Hooke (1660ish): first to name cells…use the
word to describe what he saw in cork under his
microscope; looking @ multicellular, dead stuff;
no one knows what Hooke looks like b/c Sir
Isaac Newton destroyed his only portrait
 Leeuwenhoek (1660ish): first to see living,
moving single-celled organisms…looked at lake
water & teeth gunk!
 Brown (1830ish): discovered & named the
nucleus in plant cells
What are the ingredients of eukaryotic cells? What
is the structure of eukaryotic cells? 1/5/17
Ingredients:
1)
2)
3)
4)
5)
DNA/RNA=nucleic acids…≈1.5% of total wgt
Carbohydrates=sugars…≈2.5%
Lipids=fats/oils…≈1%
Proteins…≈5%
H2O…≈90%; humans will die in 3 days w/out
H2O but 120 days w/out food
Structure (parts & pieces):
Chart taped-in
Diversity:
 Structure=function…how a cell is built enables
it to do its job for the organism
 Cells only have the organelles needed for its job
in the organism
 Animal cells come in a variety of shapes, sizes
& colors
 Plant cells are all boxy-shaped to help give the
plant height (stackable!) & green, white,
brown, or flower colored
What did I learn from the video, “Cells” 1/20/17