Reducing Water Loss (OCR A-Level Biology A): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Why are most stomata on the lower leaf surface in land plants?
Why are most stomata on the lower leaf surface in land plants?
Lower surface is cooler, reducing evap.
When do stomata close to prevent unnecessary water loss?
When do stomata close to prevent unnecessary water loss?
During darkness when photosynthesis stops
What are xerophytes?
What are xerophytes?
Plants adapted to limited water avail.
How do xerophytic adaptations primarily reduce water loss?
How do xerophytic adaptations primarily reduce water loss?
Reduce vapour gradient or surface area
How do sunken stomata reduce water loss in xerophytes?
How do sunken stomata reduce water loss in xerophytes?
Trap moist air, raising humidity in pit
What is the function of stomatal hairs (trichomes) in xerophytes?
What is the function of stomatal hairs (trichomes) in xerophytes?
Trap water vapour & reduce air movement
How do rolled leaves reduce water loss in xerophytes?
How do rolled leaves reduce water loss in xerophytes?
Trap humid air within rolled structure
Which adaptation does marram grass use to survive on sand dunes?
Which adaptation does marram grass use to survive on sand dunes?
Stomata in deep grooves of rolled leaves
What are cactus spines?
What are cactus spines?
Modified leaves with minimal surface area
Where are stomata located in hydrophytes with floating leaves?
Where are stomata located in hydrophytes with floating leaves?
Upper leaf surface