Download Section 7.1 Guided Notes

Name ______________________________
Class Period _______________
CP Biology - Cell Structure and Theory: Guided Notes
Discovery of Cells
Robert Hooke - 1665
Anton Van Leeuwenhoek – 1674
Robert Brown – 1832
Matthias Schleiden - 1838
Theodor Schwann - 1839
Rudolf Virchow - 1855
Ernst Ruska – 1939
Three Types of Microscopes
Compound Light
Microscope
Utilizes WHAT to view
specimen?
What does it allow you
to see?
Total Magnification
“Pro”
“Con”
Transmission Electron
Microscope (TEM)
Scanning Electron
Microscope (SEM)
7.2 - Cell Structure
The Discovery of the Cell
– THE CELL THEORY
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Prokaryote
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Prokaryotes
• Prokaryotic cells are generally _______________________________ and ______________________________
than eukaryotic cells.
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The organisms we call bacteria are prokaryotes.
Eukaryotes
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Eukaryotic cells are generally __________________________________ and ____________________________.
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Most contain dozens of____________________________________ and _________________________________
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Eukaryote
Many eukaryotes are highly specialized.
• Types of eukaryotes: plants, animals, fungi, and protists.
Cell Structure
• Cell Diversity – Are specialized to perform specific functions
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Compare Plant and Animal Cells
Plant Cells
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Animal Cells
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Cell Organization
– Eukaryotic cell can be divided into two major parts:
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Cell Organization
– ________________________________________________ specialized structure that performs important
functions within a cell.
• Literally “little organs.”
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Cell Structures
Organelle
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Nucleus
Nuclear Envelope
Nucleolus
Chromatin
Cytoplasm
Vacuoles
Vesicles
Function/ Information
Lysosomes
Ribosomes
Endoplasmic Reticulum
Rough & Smooth
Golgi Apparatus
Mitochondria
Chloroplasts
*Plant Cell*
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Cytoskeleton
Microtubules
Microfilaments
Cell Wall
*Plant Cell*
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Cell Membrane
– Is the cell _______________________________________________ !!
– Regulates what _________________________________ and _____________________________________ the cell.
– The cell membrane is ____________________________________ ____________________________________
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Some substances can pass across them and others cannot.
– Cell membranes are made of double-layer of _____________________________________.
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Called the ______________________________
____________________________________.
– Is strong and flexible barrier between the cell and its surroundings
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The Fluid Mosaic Model
– There are also carbohydrates and proteins embedded in the membrane.
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The membrane contains several different molecules, but remains flexible (Like a
liquid)
Many molecules in the membrane = Mosaic
Special Structures on some cell membranes
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Cilia -
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Flagellum –
Label the animal and plant cell:
Flexible and molecules constantly moving = Fluid