If you’ve ever studied cellular biology, you’ve likely encountered the term . And if you’re like most students, you’ve probably asked yourself: "Wait, does this process use ATP or not?"
The transport protein itself acts as a channel that unlocks only when both molecules bind. No ATP is hydrolyzed at this site; the energy is derived entirely from the kinetic and potential energy of the moving ion. does secondary active transport use atp
| Feature | Primary Active Transport | Secondary Active Transport | | :--- | :--- | :--- | | | Yes (hydrolyzes ATP) | No | | Indirect ATP dependence | No | Yes (relies on gradient made by primary transport) | | Energy source | ATP directly | Electrochemical gradient (Na⁺ or H⁺) | | Example | Na⁺/K⁺ ATPase pump | SGLT (sodium-glucose cotransporter) | If you’ve ever studied cellular biology, you’ve likely