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Active Transport

Active Transport. Active Transport . Active transport = pumping of molecules against their concentration gradient with energy ( ATP ). 3 Types Of Active Transport. Ion Pumps Cotransport Endocytosis. Ion Pumps. Ion pumps (also called electrogenic pumps)

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Active Transport

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  1. Active Transport

  2. Active Transport • Active transport = pumping of molecules against their concentration gradient with energy (ATP).

  3. 3 Types Of Active Transport • Ion Pumps • Cotransport • Endocytosis

  4. Ion Pumps • Ion pumps (also called electrogenic pumps) = are special proteins which actively transport ions

  5. Cotransport • Cotransport = the coupled passage of two materials across a membrane. • helps sucrose enter the cell.

  6. Endocytosis • Endocytosis= the import of materials to the cell by infoldings of the plasma membrane.

  7. Vesicles • Small sac of membrane with a droplet of fluid inside • Form from larger pieces of membrane

  8. References • Course Companion- page 33 • IB HL book- page 35 • Study guide- page 8

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