Two plant species grow in the same dry conditions. Species P has small leaves with a thick waxy cuticle. Species Q has large leaves with a thin waxy cuticle.
Which statement best explains why P is likely to lose less water?
Its exposed leaf area is smaller and its cuticle reduces evaporation.
Its exposed leaf area is larger and its cuticle increases evaporation.
Its exposed leaf area is smaller and its cuticle increases evaporation.
Its exposed leaf area is larger and its cuticle reduces evaporation.
43 exam-style questions on Edexcel GCSE Biology 6.2 Transport in plants, covering 6.2.1 Root hair cell adaptations, 6.2.2 Structure of xylem and phloem, 6.2.3 Transpiration and stomata, 6.2.4 Translocation of sucrose, 6.2.5 Leaf structure for photosynthesis, 6.2.6 Environmental factors on water uptake, 6.2.7 Rate calculations for transpiration, and 6.2.8 Plant adaptations to extreme environments. Each one has a worked solution and a mark scheme showing where the marks go.