The concentration of calcium inside a cell is 0.3%.The concentration of calcium outside the cell is 0.1%.How could the cell transport even more calcium to the inside?
A) passive transport
B) active transport
C) osmosis
D) exocytosis
E) All of the answers are correct.

Question

Quizplus · Accepted Answer

Active transport would require energy to move calcium against its concentration gradient from an area of lower concentration to an area of higher concentration. This would allow the cell to transport even more calcium to the inside. Passive transport, osmosis, and exocytosis would not be effective at increasing the concentration of calcium inside the cell. Therefore, option B is the best choice.

The Concentration of Calcium Inside a Cell Is 0