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Learning Target: Cell Theory I Can…Identify characteristics common to all cells and describe key differences between two broad categories of cells.
I Will…• List the three parts of the cell theory• Name characteristics common to all
cells• Compare/Contrast eukaryotic and
prokaryotic cell characteristics
CAPT Standard 10.1 – Fundamental life processes depend on the physical structure and chemical activities of the cell.
• Expected Performance D 27 – Describe the similarities and differences in the basic structure of plant and animal cells.
Contributions in developing Cell Theory:
Came from • Many scientists• Improvements in microscope
technology
Cell Theory – Unifying Biological Concept
1. All living things are made of cells
2. All cells are produced from other cells (all cells come from other living cells)
3. The cell is the basic unit of life
Cell Characteristics:
Most cells tend to be:• MicroscopicAll cells must have:• A cell membrane• Cytoplasm
Two Broad Categories of Cells:Prokaryotic
• No nucleus• No membrane-bound
organelles• DNA is free within
cytoplasm• Only single-celled
microscopic organisms
Eukaryotic• Nucleus• Membrane-bound
organelles• DNA is within
nucleus• May be single-celled
microscopic organisms OR multicellular macroscopic organisms