Active Transport When an input of energy is required to move materials through a cell membrane.

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Presentation transcript:

Active Transport When an input of energy is required to move materials through a cell membrane

Active Transport *Involves transport proteins In active transport, a transport protein binds with the needed particle and cellular energy is used to move it through the cell membrane When the particle is released, the transport protein can move another needed particle through the membrane.

Two Types of Active Transport Endocytosis Exocytosis

Endocytosis The process of taking substances into a cell by surrounding it with the cell membrane Bringing particles “In”

Exocytosis Occurs in the opposite way that endocytosis does. A vesicle’s membrane fuses with a cell’s membrane, and the vesicle’s contents are released Fun fact: Cells in your stomach use this process to help digest food.

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