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Cell membrane is selectively permeable because

Options

  1. Ait is made up of selected organic molecules
  2. Bit does not allow transport of some substances from region of higher concentration to the region of lower conc
  3. Cthe movement of organic molecules occurs only at specific concentration
  4. Dit allows the movement of certain molecules in and out of the cell while the movement of other molecules is pr

Correct answer

D. it allows the movement of certain molecules in and out of the cell while the movement of other molecules is pr

Step-by-step solution

The correct answer is option D.

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