Chapter 6 Introduction to the Cell by moti

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									                            Chapter 6: Introduction to the Cell

The Cell Theory
1)

2)

3)

MICROSCOPES
1) Light Microscope:
2) Electron Microscope (1950’s)
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Light Microscope
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Electron Microscope (1950’s)
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     1.   Transmission Electron Microscope
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     2. Scanning Electron Microscope
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**Disadvantages to EM:
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WE CAN ALSO STUDY CELLS BY...
 Cell Fractionation =

 Centrifugation =

ALL CELLS:
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CELLS CAN BE CLASSIFIED AS:
          1. PROKARYOTES                                2. EUKARYOTES
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SOME IMPORTANT CELL PARTS ARE…
NUCLEUS
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NUCLEAR ENVELOPE
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CHROMATIN
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CHROMOSOMES
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NUCLEOLUS
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             1) rRNA: transcribed in nucleolus
             2) RNA produced elsewhere in the nucleus
     -Ribosomal subunits pass through nuclear pores to the cytoplasm where assembly
     into ribosomes is completed

RIBOSOME
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