Which type of transport is used to move a molecule from a region of low concentration to a region of high concentration?

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❖ This is known as active transport. Active transport uses the cell's energy to move molecules from an area of high concentration to an area of low concentration.

(Note: Active transport is the only time that molecules move from high to low concentration)

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explanation:

he is very short, and he can only reach halfway up on the elevator buttons. but on a rainy day, he has his umbrella with him, and he uses it to poke the button at the top.