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28 April, 03:10

Which of the following statements about diffusion is true?

"1. It requires integral proteins in the cell membrane. 2. It is very rapid over long distances. 3. It is a passive process in which molecules move from a region of higher concentration to a region of lower concentration. 4. It is an active process in which molecules move from a region of lower concentration to one of higher concentration. 5. It requires an expenditure of energy by the cell."

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  1. 28 April, 03:23
    0
    3. It is a passive process in which molecules move from a region of higher concentration to a region of lower concentration.

    Explanation:

    Diffusion can be defined as the movement of solute or gaseous molecules from the region in which they have higher concentration to the regions in which they have lower concentration until they become evenly distributed across the two regions.

    Diffusion is a passive process, that is, it requires no energy.

    Option 3 is the correct option.
  2. 28 April, 03:29
    0
    It is a passive process in which molecules move from a region of higher concentration to a region of lower concentration

    Explanation:

    Diffusion is the movement of a substance from an area of high concentration to an area of low concentration. It is an important process for living things.

    A single substance tends to move from an area of high concentration to an area of low concentration until the concentration is equal across a space
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