Question

The concentration of an anion inside a cell is 0.3%. The concentration of this anion outside the cell is 0.1%. How could the cell obtain more of this ion inside the cell?

A)exocytosis

B)passive transport

C) osmosis

D) active transport

E) pinocytosis

Answer 1

To increase anion concentration inside the cell, the cell can employ active transport, which uses ATP to move substances against their concentration gradient, exemplified by the sodium-potassium pump.

Step-by-step explanation:

The cell could obtain more of this anion inside by using active transport. Active transport involves the use of energy, typically from adenosine triphosphate (ATP), to move substances against their concentration gradient. Since the anion concentration is higher inside the cell than outside, moving more anions into the cell would require energy to go against the gradient. Examples of active transport include the sodium-potassium pump, which moves sodium ions out of the cell and potassium ions into the cell, often generating a net negative charge inside the cell due to expelling more cations than are taken in.