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Cards In This Set
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Cell theory
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The summary of the discovery of cells- cells are the basic unit of structure and function in an organism- all living things are composed of 1+ cells- cells come from the reproduction of other cells
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In 1665, ___RH___ was the first to ________________. He looked at a ______________ under a microscope and concluded _______________, He go credit for __________ cells.
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- Robert Hooke- observe dead cells- cork- cells were like "small rooms"- discovering
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In 1673, ____AvL____ was the first ______________. He looked at a _______________.
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- Anton van Lueewenhoek- to observe living cells- a sample of pond water
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In 1838, _____MS_______ concluded all _______ are made up of cells.
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- Matthias Schlieden- plants
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In 1839, ____TS_____ concluded all __________ are made up of cells.
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- Theodore Schwan- animals
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In 1855, ____RV____ proved _______________________.
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- Rudolf Virchow- cells only come from the reproduction of other cells
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Why are cells so small?
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Surface area to volume ratio
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Explain surface area to volume ratio.
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Imagine multiplying body weight and shrinking mouth. Cells need a large surface area to diffuse in more nutrients and food and get rid of more waste.A cube with measurements 1x1x1, the ratio surface area:volume is 6:1A cube with measurements 2x2x2, the ratio surface area:volume is 24:8, 3:1A cube with measurements 3x3x3, the ratio surface area:volume is 54:27, 2:1
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A cell's shape is related to __________.
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Function
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 Prokaryotic Cells |
No membrane bound organellesNo nucleus1-10 um
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 Eukaryotic Cells |
Membrane bound organellesTrue nucleus that holds DNA10-100 um
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Organelle
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Cellular component that carries out specific functions within the cell
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Cytoplasm, Cytosol
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Jelly-like aqueous solution that holds organelles in place
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Cell membrane, Plasma membraneis made up of ________________.
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Encloses contents of eukaryotic and prokaryotic cells- phospholipid bilayer
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Integral proteins
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 Extend through bilayer and serve as passageway in and out of cells |
