n which situation would passive transport most likely be used to remove a substance from inside a cell?

Question

Question 6 options:

When the substance is composed of positive ions.

When the concentration of the substance is higher outside the cell than inside the cell.

When the concentration of the substance is lower outside the cell than inside the cell.

When the substance is composed of large protein molecules.

Answer 1

Passive transport is the movement of substances across a cell membrane without the expenditure of energy, typically occurring down a concentration gradient.

The correct answer to the question is:

When the concentration of the substance is higher outside the cell than inside the cell.

In this situation, passive transport would facilitate the movement of the substance from an area of higher concentration (outside the cell) to an area of lower concentration (inside the cell). This process can occur through diffusion or facilitated diffusion, depending on the nature of the substance.