A cell needs to take up k ions, the concentration of na outside the cell is 100 ppm, and inside the cell it is 75 ppm. which type of transport will it use? a. active transport b. particle transport c. passive transport d. phospholipid regulated transport

Respuesta :

Option(A) is the correct answer.

For some time, sodium/potassium ATPase must begin to function. Naturally, this membrane-bound enzyme catalyzes the conversion of three internal Na+ ions into two external K+ ions. As a result, the amount of intracellular sodium will decrease and intracellular potassium will increase. A transporter that is active is this enzyme. Therefore, ATP will be employed as the source of energy for active transport.

What does sodium potassium ATPase do?

Normally, the sodium potassium ATPase maintains a potassium gradient inside the cell (20X more potassium inside than outside), allowing potassium to passively flow out of the cytoplasm through open potassium channels. In live cells, this K+ leakage keeps the membrane potential stable. As in your case, sodium should be greater outside the cell. As a result, co-transport systems can be powered by the sodium gradient, conserving ATP. (Of course, if sodium channels open, the sodium also depolarizes the membranes of neuronal cell membranes.) Although I am unsure of what the typical concentration of salt in a cell is, your figure appears pretty high. Since the external salt content should be nine times greater than the inside, I believe it needs to be decreased.

To learn more about ATP:

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