10.6.09 Lecture - Cell Biology

10.6.09 Lecture - Cell Biology - 10/6/09 Part II Cell...

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10/6/09 Part II – Cell Biology What is Cell Biology? -cell sructure and morphogenesis. -organelle structure and function. - endo-membrane systems and secretion. -Cytoskeleton. -ion channels and membrane potential. -intracellular signaling systems. -the cell division cycle. -mitosis (chromosome segregation). -Cytokinesis (cell Division). -Cell specialization (muscle, nerve, epithelium. I. The Cell Theory 1. Cells are the fundamental units of life, cuz a cell is the simplest unit of independent existence. 2. All living things are made of cells. II. What characterizes living (independent existence)? 1. Metabolism 2. Growth 3. Reproduction What makes a cell a cell? Composition: -60% H -25% O -12% C -5% N -<1%, Na, S, Ph, K, Ca, Fe, Cl -90% Water -10% solids -50% protein -15% carbohydrate -15% nucleic acid -10% lipid -10% miscellaneous Parts List Sim City Plasma membrane Power plant (energy) - Mitochondria Nucleus Protein manufacturing - Ribosomes
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MItochrondria Carbo manufacturing – Golgi apparatus Chloroplast
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10.6.09 Lecture - Cell Biology - 10/6/09 Part II Cell...

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