BI13_Ch3 PP Outline

BI13_Ch3 PP Outline - 1 2 Cells: The Living Units Chapter 3...

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1 Cells: The Living Units Chapter 3 2 Goals Introduction Know that cells come in many shapes and sizes Be able to give examples Name the 3 main parts of a cell and their functions Know internal cell structures and their functions Know the structure and function of the plasma membrane Di f usion Osmosis Membrane Transport 3 Types of Eukaryotic Cells 4 5 The Generic Eukaryotic Cell 6 Cells in Real Life 7 Practice Test Questions What is the smallest living unit in a human? What do all eukaryotic cells have in common? A. Size B. Shape C. Function D. Nucleus 8 Internal Structures of the Cell The Cytosol The Cytoplasmic Organelles The Nucleus 9 The Cytosol Gel-like material that ±lls the cytoplasm 80% water 20% proteins and nutrients Inclusion bodies Granules (clumps) of molecules that are stored in the cytoplasm Vary with cell type Fat (fat cells) Melanin (skin cells) Glycogen (muscle cells) 10 Internal Structures of the Cell The Cytosol The Cytoplasmic Organelles The Nucleus
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The Nucleus 11 Cytoplasmic Organelles “Little organs” Compartments usually surrounded by a membrane Each responsible for a di f erent cellular function 12 Endoplasmic Reticulum (ER) Location Around nucleus Structure and function Large network of Fattened membranes Cisternae Rough ER (RER) Ribosomes attached Makes proteins that will be secreted Smooth ER No ribosomes ±at and hormone synthesis Drug detoxi²cation Calcium storage (muscle cells) 13 Ribosomes: Protein ±actory Location Some Foat free in cytosol Many found attached to the RER Ribosomes are not surrounded by a membrane Structure Made of two subunits Large Small ±unction Site of protein synthesis The more ribosomes a cell has the faster it is growing 14 Golgi Apparatus: Protein Post O F ce Location Near RER Structure
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BI13_Ch3 PP Outline - 1 2 Cells: The Living Units Chapter 3...

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