Cell Structure & Function


The Cell Theory 1. All living things are composed of one or more cells



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cells ppt

The Cell Theory

1. All living things are composed of one or more cells.

2. Cells are organisms’ basic units of structure and function.

3. Cells come only from existing cells.

Prokaryote/Eukaryote Comparison [see resources]

Two Types of Cells

  • Scientists separate cells into two broad categories based on the location of the genetic material that cells need to reproduce and function.

PROKARYOTIC CELL VS.EUKARYOTIC CELL

PROKARYOTIC CELL

  • 1. genetic material or structures are not surrounded by membranes
  • 2. no or Few internal structures( organelles)

    3. Are always One-celled organisms such as Bacteria

EUKARYOTIC CELL

  • 1.Genetic material is in a structure enclosed by its own membrane ( have nucleus)
  • 2. Contain organelles surrounded bymembranes
  • 3. Ex. -Most living organisms

Prokaryotes


Archaebacteria

Eubacteria

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