Table of Contents
What type of transport is used to carry sodium and potassium?
active transport
The sodium-potassium pump carries out a form of active transport—that is, its pumping of ions against their gradients requires the addition of energy from an outside source. That source is adenosine triphosphate (ATP), the principal energy-carrying molecule of the cell.
What type of cellular transport allows for sodium and potassium to enter and leave the cell?
sodium-potassium pump
An example of active transport is the sodium-potassium pump. When this pump is in operation, sodium ions are pumped out of the cell, and potassium ions are pumped into the cell. Both ions move from areas of lower to higher concentration, so ATP is needed to provide energy for this “uphill” process.
Do sodium and potassium require facilitated diffusion?
Thus, they are transported in their concentration gradient by facilitated diffusion. Potassium ions, sodium ions, and calcium ions need membrane proteins that can provide a passageway. These proteins are referred to as ion channels (or gated channel proteins).
Is sodium potassium pump facilitated transport?
Explanation: facilitated diffusion doesn’t require energy because it transports down a gradient while the sodium potassium pump requires energy because it transports against the gradient.
Which of the following is required for the sodium potassium pump to transport potassium ions into an animal cell?
Active transport
The Sodium-Potassium Pump. Active transport is the energy-requiring process of pumping molecules and ions across membranes “uphill” – against a concentration gradient. To move these molecules against their concentration gradient, a carrier protein is needed.
How are potassium and sodium transported across the membrane?
Active transport is the energy-requiring process of pumping molecules and ions across membranes “uphill” – against a concentration gradient. It moves two potassium ions into the cell where potassium levels are high, and pumps three sodium ions out of the cell and into the extracellular fluid.
Is the sodium-potassium pump primary active transport?
The sodium-potassium pump maintains the electrochemical gradient of living cells by moving sodium in and potassium out of the cell. The primary active transport that functions with the active transport of sodium and potassium allows secondary active transport to occur.