Transportation in Plants — BIOLOGY STD 8 — Question
ICSE BoardEnglish MediumSTD 8BIOLOGYTransportation in Plants2 Marks
Question
Define the term semi$-$permeable membrane.
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Answer
It is a membrane that allows the movement of solvent molecules $($e.g. water molecules$)$ through it but prevents the movement of solute particles $($e.g. sugar or salt molecules$)$. For example : Egg membrane, parchment membrane, cellophane paper etc. are semi$-$permeable membranes.
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