Waec Model Questions Vol1 2023 Biology Question 16
Practice objective / multiple choice question 16 from the 2023 Waec Model Questions Vol1 Biology examination.
Two desert plants differ in their water‑saving adaptations. Plant A (a CAM plant) has a leaf area of 150 cm² and opens its stomata for 4 h each night. Its transpiration rate is 0.5 g H₂O per hour per cm², but CAM metabolism reduces its total water loss by 30 %. Plant B (a C₃ plant) has a leaf area of 120 cm², opens its stomata for 6 h each day, and its transpiration rate is 0.8 g H₂O per hour per cm². Which plant loses less water over a 24‑hour period and by how many grams?
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This is Waec Model Questions Vol1 2023 Biology Question 16. It is one of the objective questions from the 2023 Waec Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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