1. 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

Exocytosis

Endocytosis

Pinocytosis

Phagocytosis

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.

Endocytosis :

The process where a cell surrounds and takes_____material from its environments.

The particle does not pass through the membrane, it is simply__________and enclosed

engulfed in 15.

Exocytosis :

The reverse process where materials are______________ or secreted from a cell.

This is used to____________andsecreted substances (hormones)produced by the cell.

expelled rid wastes 16.

Whenexocytosisis gettingrid of cell wastes , the process is called___________

Whenexocytosisispushing useful substances out of the cell , then the process is known as____________

excretion secretion 17. Endocytosis Exocytosis 18. Pinocytosis vs. Phagocytosis Both take materialsIN 19.

Pinocytosis :

Pinocytosis is when the cell________.

Pinocytosis deals with__________ .

Pinocytosis is a process that ishappening all of the time .

The liquid is enclosed in vesicles , formed byinvaginationof the plasma membrane. These vesicles then move into the cell.

pinches liquids (DRINKS) 20. Pinocytosis 21.

Phagocytosis :

Phagocytosis is when the cell_______

Phagocytosis deals with_________.

Once the vesicle has formed, it travels into the cytoplasm where it will fuse with___________that will kill and digest the engulfed material.

Phagocytosis is process the human body uses to destroy dead or foreign_______ .

solids engulfs lysosome cells 22. Phagocytosis Used by white blood cells to engulf bacteria or infected cells 23. Phagocytosismovie Phagocytosis2 movie