Which sentence best describes active transport?1) A substance moves into or out of a cell using energy.2) A substance moves from an area of high concentration to an area of low concentration.3) Water moves into and out of the cell.4) A material moves into or out of a cell without using energy.

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29-10-2022
Biology

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Which sentence best describes active transport?1) A substance moves into or out of a cell using energy.2) A substance moves from an area of high concentration to an area of low concentration.3) Water moves into and out of the cell.4) A material moves into or out of a cell without using energy.

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Explanation:

Active transport is the movement of molecules across a cell membrane from a region of low concentration to a region of high concentration. This is done using energy.

According to this, we can conclude that option 2) is false: a substance moves from an area of high concentration to an area of low concentration.

We can conclude that the correct answer is:

Answer:

A substance moves into or out of a cell using energy.