Active Transport High To Low

Requires metabolic energy (ATP). This moves "uphill" to create a stockpile of nutrients or ions.

This is likely the source of your confusion. Bulk transport involves moving large particles or large amounts of material. Even if the movement is technically from high to low, because it involves the cell membrane physically moving and changing shape. active transport high to low

This is what is typically taught as "Active Transport." It involves the direct use of ATP to move ions or molecules against their concentration gradient (from an area of to an area of High concentration ). Requires metabolic energy (ATP)

One substance moves from high to low to power the movement of another substance in the opposite direction. 3. Why Cells Spend Energy to Create Gradients Bulk transport involves moving large particles or large

Active transport plays a vital role in various cellular processes, including: