Question

If all the substance pass easily through the membrane ,the membrane is said to be what?​

Answer 1

Answer:

The cell membrane is selectively permeable . It lets some substances pass through rapidly and some substances pass through more slowly, but prevents other substances passing through it at all. Some small molecules such as water, oxygen and carbon dioxide can pass directly through the phospholipids in the cell membrane.

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Answer 2

Answer:

permeable

Explanation:

since it allows all the particles to pass through it

Eg:muslin cloth