Unit 1: Cells, Diffusion & Respiration

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Presentation transcript:

Unit 1: Cells, Diffusion & Respiration Thursday 2-11-2010 Unit 1: Cells, Diffusion & Respiration

(1) Cells Cell = Basic unit of life. Types: Prokaryotic Eukaryotic

(2) Organelles Organelle = Specialized membrane structure w/in a cell. Types: Nucleus Endoplasmic Reticulum Ribosomes Golgi Apparatus / Body Mitochondria Lysosomes

(3) Cell Membrane Outermost covering of cells. Structure: Function: Cell Wall = Exception. Structure: Phospholipid Bilayer Embedded Protein Channels Function: Traffic Control

(4) Diffusion High  Low…. Until Equilibrium Concentration Gradient No Energy

(5) Osmosis Water High  Low… Until Equilibrium Concentration Gradient No Energy Semipermeable Membrane

(6) Hypertonic & Hypotonic Water Solutions Hyper = [High Solute] Hypo = [Low Solute]

(7) Active Transport Low  High…. Against Equilibrium Against Concentration Gradient Energy Protein Channels

(8) Cellular Respiration Mitochondria C6H12O6 + 6O2  6CO2 + 6H2O + ATP Energy Transfer: Glucose  ATP Carbohydrate Metabolism

(9) Homeostasis Stability Conditions: pH  Acids & Bases Temperature Water [Ion]  Electrolytes