Examples Of Active Transport 〈8K | 480p〉

Active transport is generally categorized based on how the energy is sourced:

As they entered Cellville, the cotransporter used the energy from the sodium ion's concentration gradient to transport the glucose molecule against its own concentration gradient. This process was an example of secondary active transport, where the energy from one molecule's gradient was used to transport another molecule against its gradient. examples of active transport

Uses an electrochemical gradient (established by primary transport) as an energy source to move a different molecule against its gradient. Active transport is generally categorized based on how

is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration. Because this movement goes against the natural "gradient," the cell must expend energy. is the movement of molecules across a cell

This is the classic textbook example of active transport. Every cell in your body maintains an electrical gradient to function. The inside of your cell has a low concentration of sodium ions and a high concentration of potassium ions. Outside the cell, the situation is reversed.

Passive diffusion would cause the plant to lose nutrients to the soil! Instead, root hair cells use active transport to forcefully pull scarce minerals from the soil into the plant against the gradient.