本题目来源于试卷: SL/HL Topic B2.1 Membranes and membrane transport，类别为 IB生物学
[问答题]
7. Outline why the processch37c:ow tij1 2t+ dymp *wqd8 of osmosis across a cell m+qwrfd3 k.u1 a lj q3r,k/,vfkembrane requires the membrane to maintain 3/q,lu,r+d1.v krakqw fk 3fjdifferent solute concentrations on each side of the membrane.
参考答案: Osmosis is the movement of water molecules.
Water molecules move from a hypotonic solution to a hypertonic solution.
The membrane is needed to separate the two solutions with different solute concentrations.
If the membrane is impermeable to the solute this prevents it crossing the membrane.
Note: Students should use the terms “hypertonic”, “hypotonic” and “isotonic” in D2.3
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