Question

what is cellular transport?
the movement of molecules from an area of higher concentration to an area of lower concentration
the process of transporting cells to a new location in the body
a state of balance among all the body systems needed for the body to survive and function correctly
the movement of substances across a semipermeable cell membrane

Explanation:

Cellular transport specifically refers to the movement of substances (like ions, molecules) across the cell membrane (which is semi - permeable). The first option describes diffusion (a type of passive transport but not the full definition of cellular transport). The second option is about cell relocation in the body, not what occurs at the membrane level for substances. The third option is the definition of homeostasis. So, the correct answer is based on the core concept of substances moving across the cell membrane.

Answer:

The movement of substances across a semipermeable cell membrane