Biology

The correct answer is: B.Diffusion, Osmosis, Facilitated diffusion

These are the types of passive transport, which is the movement of molecules across a membrane without the use of energy (ATP). In passive transport, substances move from areas of higher concentration to areas of lower concentration until equilibrium is reached.

1.Diffusion: The movement of molecules (like gases or small nonpolar molecules) from an area of high concentration to low concentration across the membrane.

2.Osmosis: The diffusion of water molecules across a selectively permeable membrane.

3.Facilitated diffusion: The movement of molecules (like glucose or ions) across the membrane via a transport protein, still down their concentration gradient (no energy required).

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