CHAPTER 7 CELL STRUCTURE AND FUNCTION Section 7
- Slides: 7
CHAPTER 7 CELL STRUCTURE AND FUNCTION Section 7. 1 - Life is Cellular Section 7. 2 - Eukaryotic Cell Structure Section 7. 3 - Cell Boundaries Section 7. 4 - Diversity of Cellular Life
Section 7. 1 - Life is Cellular Discovery of Cells Robert Hooke � Used light microscope to look at cork cells � Cells reminded him of monk cubicles � “many little boxes” � Called them CELLS
Section 7. 1 - Life is Cellular Discovery of Cells Anton van Leewenhoek � First to observe living cells � Invented simple, tiny microscopes
Section 7. 1 - Life is Cellular � The cell theory states that: � all living things are composed of one or more cells � cells are the basic units of structure and function in an organism � cells come only from the reproduction of existing cells
Section 7. 1 - Life is Cellular � Cellular Basis of Life � All living things are made of organized parts obtain energy from their surroundings perform chemical reactions change with time respond to their environment reproduce.
Section 7. 1 - Life is Cellular � Prokaryotes � Prokaryote cells lack a nucleus and membrane-bound organelles. � Have genetic material not contained in a nucleus
Section 7. 1 - Life is Cellular � Eukaryotes � Eukaryote cells have a nucleus and membranebound organelles
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