How are the most soluble food molecules absorbed into the epithelial cells of the small intestine?

Question

Biology homework, the options from the answer is to choose from diffusion, osmosis and respiration

Answer 1

In the simplest terms, diffusion is when things move from one area to another. Osmosis is a specific type of diffusion that deals with the movement of water molecules. Since we're talking about solid food molecules, osmosis doesn't apply and the answer if just diffusion.

Respiration has to deal with how we breathe and is completely unrelated.