What is an example of a carrier protein? An example of a carrier protein is the sodium potassium pump. This carrier protein uses ATP to move three sodium ions out of the cell and two potassium ions into the cell. What does a carrier protein do? A carrier protein moves molecules from one...
Here comes the role of ATP hydrolysis. For every three Na+ that are pumped out of the cell and for every two K+ that are pumped into the cell, one ATP molecule is hydrolyzed. This hydrolysis ensures that the conformation of the sodium-potassium pump changes in accordance with the transfer...
Those cells involved in active transport, e.g., nerve and muscle cells, have ion pumps that are ATP-driven for the active transport of ions across the plasma membranes. In particular, the sodium-potassium pump works by producing sodium ion concentrations build up outside the cell, subsequently...
The sodium-potassium pump is an antiport protein — its two substrates are moved in opposing directions. The mechanism of this transporter is as follows: This transport protein functions in cells with a high internal potassium ion (K+) concentration and low internal sodium ion (Na+) concentratio...
Another class of diuretics are substances that cannot be reabsorbed by the kidney tubules and thus limit the reabsorption of water by the tubules. These include mannitol, sucrose, and urea. Other diuretics (e.g., acetazolamide) work by blocking the reabsorption of sodium bicarbonate by the ...
Sodium carbonate, or soda, soda ash, or sal soda (Na 2 CO 3 ), is an example. It is often found in detergents and cleaning products. Nitrates, sulfates, and phosphates also contain oxygen and other elements. The other elements in these compounds are nitrogen, sulfur, or phosphorus plus...
Salting or curing:This treatment is done before drying meat, fish, and cheese products. Sodium chloride and potassium nitrite act as osmotic dehydrator, reduce moisture and aids the drying process, and also acts as preservatives. Dipping in sulfite:Immersion of foods in solution with a concentratio...
Less commonly, excessive sodium loss may result from cystic renal diseases or Bartter’s syndrome or may develop during a tubulointerstitial process (such as resolving ATN). In these so-called salt-wasting disorders, the tubule damage results in direct impairment of sodium reabsorption and indirectly...
Direct coupling of ATP No direct coupling of ATP Energy used: Metabolic energy (ATP) Redox energy Photon energy Energy used: Electrochemical gradient Membrane protein transporter (ion pumps, ion channels, ATPases): P-type ATPase, e.g. sodium-potassium pump, calcium pump, proton pump F-ATPase...
The majority of the chemical/metabolic reactions of the body occur in thecytoplasmor the intracellular body fluid. Intracellular body fluid is also involved in maintaining osmolarity viasodium-potassium pumpwherein potassium ions are primarily intracellularly distributed. ...