Active versus Passive Transport
10th Grade · Science · 59 min· Ngss Hs-ls1-2
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Learning Objective
I can compare and contrast active and passive transport across cell membranes.
- 1
In diffusion, particles move from an area of high concentration to an area of low concentration, without using protein channels or ATP.
- 2
Active transport requires energy in the form of ATP to move molecules against their concentration gradients, often using carrier proteins like the sodium-potassium pump.
- 3
Endocytosis and exocytosis are forms of bulk transport that use vesicles to move large quantities of molecules across the cell membrane, requiring the cell to expend ATP.
