Presentation on theme: "Mr. Stoll and Miss Else Biology Room 314"— Presentation transcript:
1Mr. Stoll and Miss Else Biology Room 314 Cells and Cell TheoryMr. Stoll and Miss ElseBiologyRoom 314
2Cell TheoryCells are the basic units of structure and function in living thingsALL LIVING THINGS ARE MADE UP OF CELLS!Two objects were invented in Holland ~1600’s: a telescope and a microscope
3Van Leeuwenhoek Van Leeuwenhoek was the first to observe living cells He studied bacteria from teeth and protozoa from pond waterHe used the microscope to study MICROORGANISMS
4Hooke Hooke used the microscope to study plant stems, wood and cork Unable to observe living cells, but named them “chamber cells”First to pioneer the study of cells
5Other discoveries…Robert Brown saw a dark structure near center of the cell, the nucleusMatthias Schleiden stated all plants are made up of cellsTheodor Schwann stated animals are made up of cells too.
6Cell Structures The cells of all organisms have 3 basic structures: Cell MembraneNucleusCytoplasmThere are a few that are different from plant to animal cells:Plants have Cell Walls and Vaculoes, animals cells DO NOT