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Description: What the main structures of all cells? What are the differences between prokaryotic and eukaryotic cells? Who were the main early researchers of cells? What are the similarities and differences among types of microscopes? What functions do proteins play in a cell?
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Chapter 6:
A Tour of the Cell
Fluid mosaic
not rigid, made up of many parts
Amphipathic molecule
both hydrophobic and hydrophilic
The
hydrophilic
heads face water, leaving the
hydrophobic
heads on the inside
...
Proteins
transport, act as enzymes, and signal transduction
● Transport
move materials through the cell membrane
● Act as Enzymes
speed up reactions
● Signal Transduction
allow movement
Cell Research
● Robert Hooke
named the cell after cells of monks
● Matthias Schleiden/Theodor Schwann
proposed that all living things are made up
of cells
● Rudolf Virchow
stated that cells arise only from other cells
Microscopy/Magnification
● TEM
2D image of inside of cells
● SEM
3D image of surface of cells
Prokaryotes
Both
Eukaryotes
●
●
●
nucleoid region
bacteria
archaea
●
●
●
●
●
cell membrane
chromosomes
ribosomes
cytosol
membranebound
organelles
●
●
●
●
●
nucleus
protists
animals
plants
fungi
Description: What the main structures of all cells? What are the differences between prokaryotic and eukaryotic cells? Who were the main early researchers of cells? What are the similarities and differences among types of microscopes? What functions do proteins play in a cell?