Cell Theory and Prokaryote vs. Eukaryote. What is a Cell?. Cell – Basic unit of living things. Organisms are either: Unicellular – made of one cell such as bacteria and amoebas . OR Multicellular – made of many cells such as plants and animals. Scientists to Remember.
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Organisms are either:
cell such as bacteria and
many cells such as plants
The Discovery of Cells
NO membrane bound organelles (just ribosomes)
ALL are unicellular
Smaller than eukaryotic cells
Forerunner to eukaryotic cells (smaller and more simple)
DNA – single strand and circular
Ex: ALL Bacteria