Fructose is a sugar molecule that is similar to glucose. It moves from a high concentration outside the cell to a low concentration inside the cell. How would fructose enter a cell?

Fructose moves from a higher concentration outside the cell to a lower concentration inside, so it moves down its concentration gradient and does not require energy. Because fructose is a relatively large, polar molecule, it needs a membrane transport protein to cross the cell membrane; this is facilitated diffusion.

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