Prokaryotes.txt

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Author:
ashleybarnes
ID:
104561
Filename:
Prokaryotes.txt
Updated:
2011-09-26 22:02:27
Tags:
Prokaryotes
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Description:
Prokaryotes
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  1. Prokaryote
    smallest and simplest cells--single celled organism that lacks a nucleus and other internal compartments..can't carry out many specialized functions Common type-BACTERIA
  2. Characteristics of Prokaryotes
    • 1. can exist in a broad range of environmental conditions
    • 2. Can cause infection in humans grow and divide very rapidly
    • 3. some do not need oxygen to survive…others need it
    • 4. some make their own food
    • 5. no internal structure to divide cell-enzymes and ribosomes are free to move around
    • 6. Has a single DNA molecule-usually in the center of the cell
    • 7. Does have a cell wall for structure and support but lack an internal supporting skeletal
    • 8. Some have a capsule that allows them to cling to almost anything, including teeth, skin and food
    • 9. Many have flagella-strong threadlike structures that protrude from the cell's surface for movement.
  3. Flagella
    seen in simple prokaryote cells-strong threadlike structures that protrude from the cell's surface for movement.

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