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Because it is a semi permeable membrane IE. it only allows selective particles to go inside it and outside it.

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14y ago

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The plasma membrane is flexible due to the presence of phospholipid molecules that can move and change position. This fluidity allows the membrane to bend and stretch, enabling the cell to change shape and facilitating the movement of molecules in and out of the cell.

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9mo ago
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Q: Why is plasma membrane flexible?
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