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3:1 Cells- Biology
Term | Definition |
---|---|
cell theory | all organisms are made of cells, all existing cells are produced by other living cells, and the cell is the basic unit of life. |
Robert Hooke | the first to identify cells and name them |
Anton van Leeuwenhoek | observed cells in greater detail by making better lenses |
Matthias Schleiden | the first to note that plants were made of cells |
Theodor Schwann | the first to note that animals were made of cells |
Rudolf Virchow | proposed that all cells come from other cells |
cell | basic unit of life |
cytoplasm | a jellylike substance that protects organalles |
organelles | structures that perform distinct processes within the cell |
prokaryotic cells | do not have a nucleus or other membrane-bound organalles |
eukaryotic cells | do have a nucleus and other membrane-bound organelles |