A mutation causes the air spaces in a leaf to be much smaller. The leaf thickness, stomatal opening and number of chloroplasts are unchanged.
Which effect is most likely in bright light?
Light reaches mesophyll cells less readily, reducing photosynthesis.
Light reaches mesophyll cells more readily, increasing photosynthesis.
Carbon dioxide reaches mesophyll cells less readily, reducing photosynthesis.
Carbon dioxide reaches mesophyll cells more readily, increasing photosynthesis.
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.