Question

if this drawing represents a cell and the arrow indicates the direction of movement in \purple ball\ molecules through an integral protein, is the movement across the membrane passive or active or neither? lipid bilayer inside cell outside cell passive active neither—no movement will occur.

Explanation:

Passive transport moves molecules from high to low concentration without energy. Active transport moves from low to high with energy. Here, molecules move from high (inside cell) to low (outside cell) concentration through a protein, which is facilitated diffusion - a type of passive transport.

Answer:

Passive