Active Transport Ch 8
2. Itispossible for particles to travel in thereversedirection across the membrane and have particles travel from an area of_______concentration to an area of______concentration, but in order to counteract the force of diffusion the cell must expend energy. This process is called_______________. Low High Active Transport 3. Active transportis the movement of materials through a membrane____________a concentration gradient. Active transport requires____________. AGAINST ENERGY 4. low concentration high concentration 5. The energy for active transport comes from______ (Adenosine Triphosphate)generated inside mitochondria. ATP 6. This process requiresspecialized proteins , which are__________proteins to bind with the particle and transport it. Carrier 7. Example:Sodium/Potassium pumpin cell membranes. 8. 9. Summary of Passive and Active Transport: & Osmosis GREAT PICTURE 10. Thus, far we have talked about the movement of__________particles traveling across the membrane. Small 11. However,__________particles are able to cross to and do so by any of these four active transport processes: Large
12. Root Greek or Latin meaning Endo- inside, withinExo- external, out Phago- eat Pino- drink 13. Endo cytosis vsExo cytosis: BOTH REQUIREENERGY Large particles are transported across themembrane in membrane bound vesicles. 14.
engulfed in 15.
expelled rid wastes 16.
excretion secretion 17. Endocytosis Exocytosis 18. Pinocytosis vs. Phagocytosis Both take materialsIN 19.
pinches liquids (DRINKS) 20. Pinocytosis 21.
solids engulfs lysosome cells 22. Phagocytosis Used by white blood cells to engulf bacteria or infected cells 23. Phagocytosismovie Phagocytosis2 movie