Which of the following are types of passive transport? Check all that apply.

Passive transport moves substances across a cell membrane without the cell using energy. Osmosis is the movement of water, diffusion is the movement of particles from higher to lower concentration, and facilitated diffusion uses membrane proteins to help substances move down their concentration gradient. Phagocytosis, endocytosis, and exocytosis are forms of active, energy-requiring transport.

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