NEET PG DENTAL EXAM

EMBRYOLOGY

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The operation of the sodium-potassium “pump” moves
A
sodium ions out of the cell and potassium ions into the cell
B
sodium and potassium ions into the cell
C
sodium ions into the cell and potassium ions out of the cell
D
sodium and potassium ions out of the cell.
E
sodium and potassium ions into the mitochondria.
Explanation: 

Detailed explanation-1: -The sodium-potassium pump system moves sodium and potassium ions against large concentration gradients. 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.

Detailed explanation-2: -The pump now binds two potassium ions and releases the three sodium ions in its altered configuration. The phosphate group separates after the potassium ions are attached to the pump. The two potassium ions are then released into the cytoplasm by the pump as a result.

Detailed explanation-3: -The sodium-potassium pump goes through cycles of shape changes to help maintain a negative membrane potential. In each cycle, three sodium ions exit the cell, while two potassium ions enter the cell.

Detailed explanation-4: -The sodium-potassium pump (PDB entries 2zxe and 3b8e ) is found in our cellular membranes, where it is in charge of generating a gradient of ions. It continually pumps sodium ions out of the cell and potassium ions into the cell, powered by ATP.

There is 1 question to complete.