Practice IB Biology Topic A1.1 Water with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for A1.1 Water and mirrors Paper 1A, 1B, 2 style where relevant.
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Water molecules contain polar covalent bonds due to unequal sharing of electrons. What is the result of this polarity?
In plant tissues, adhesion between water and cellulose supports water movement. What would be the likely consequence if plant cell walls were composed of hydrophobic material?
Surface tension arises from unbalanced hydrogen bonding at the air–water interface. What ecological consequence does this property have?
Water has a high specific heat capacity compared to air. How does this property affect the thermal environment for aquatic organisms?
Many biological molecules are hydrophilic. What is the significance of water being a solvent?