Cell History
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Transcript of Cell History
Cell HistoryMajor events and diversity of cells
Know the peopleRobert Hooke: named cells “cells” Anton van Leeuwenhoek: living cells, bacteria
and protozoaMatthias Schleiden: plants have cellsTheodore Schwann: animals have cellsRudolf Virchow: cells come from existing
cellsThree scientists for cell theory
Cell Diversity: Size (A.)Size is limited by:
SURFACE AREA TO VOLUME RATIOAs volume (mm3) increases, surface area (mm2)
does not increase as quickly. This limits how big the cell can get, making cells remain soooo small
Need more explanation??? Click HERE
Light and Electron MicroscopeLight Microscope Electron Microscope
Notice a different between the two microscopes?
Cell Diversity: Shape (B.)Structure (shape) reflects functionNerve Cell:
Skin Cell:
Blood Cell:
Cell Diversity: Internal Organization (C.)Organelle: component of the cell that has a
specific function for cell survivalEukaryote: YOU are a eukaryote (pun is
intended)cells that contain a nucleus(all animals and
plants)Prokaryote: cells that do not have a nucleus
(protists, bacteria)