The Diversity of Cells HO#____C Name:_____________________

Cells and the Cell Theory Robert Hooke 1665 Cork Saw “little boxes” AKA ___________ Plants and fungi Cell _________ Living cells “________”

Finding Cells in Other Organisms Anton van Leeuwenhoek 1673 Pond scum _________________  “little animals” Animal blood Differnece in ______ make-up Bacteria ______________ Discovered it makes bread rise…Yummo!

The Cell Theory Schwann All organsisms are made of ______ or more cells The cell is the __________ unit of all living things Virchow All cells come from _________________ cells. hl503_01_v01fs

Cell Size Supersize Please ________________ is one large cell Value size Most cells are _________________ Why??? Must have surface area to volume __________  ____________ cell = more food/wastes  Surface area grows ________________ than volume  Not enough ____________ in and not enough wastes out!!  We get a big useless blob!!!

Parts of a Cell Cell ____________ (AKA: North Pole Walls and Guard Elves) Protective layer that covers the cell’s surface and acts as a barrier __________________ (AKA: A bowl full of jelly) Fluid inside the cell Organelles (AKA: the elves) Perform __________________ inside the cell Genetic Material (AKA: _______________) All cells have ____________ at some point Controls activities of a cell Kept in a ______________ (AKA: Santa’s Office) only in Eukaryotes Humans- nucleus ________________- no nucleus

Two Kinds of Cells _____________________- single celled organisms that do not have a nucleus or membrane bound organelles Two Types _____________

Bacteria Single celled Smallest cells known Live anywhere

Archae Single Celled No Nucleus Has: Ribosomes DNA Cell membrane Three types ___________ loving extremophile ___________ loving extremophile ___________-making

Eukaryotic Cells Largest cells 10 times larger than bacteria Still microscopic Have a __________ Membrane bound organelles Many are multi-cellular Examples Animals _____________ Some protists ____________ Green algae Fungi Yeast __________ Mitochondria Ribosomes __________ Nucleolus __________ Cell membrane __________ Endoplasmic Reticulum