Practice free →
HomeICAR JRFPlant SciencesPlant Form and Physiology › How does the cuticle of a xerophyte compare with…

How does the cuticle of a xerophyte compare with that of a mesophyte?

AMuch thinner, because water is scarce
BMuch thicker, because water is scarce
CMuch thinner, because sunlight is scarce
DMuch thicker, because sunlight is scarce
Answer & Solution
Correct answer: B. Much thicker, because water is scarce
1. Xerophytes are desert plants and epiphytes grow on other plants, and both have limited access to water. 2. Such plants usually have a much thicker waxy cuticle than plants of moderate, well watered environments. 3. Those well watered plants are the mesophytes, and aquatic plants are hydrophytes. 4. A thicker cuticle cuts evaporation from the leaf surface, which is the point of the adaptation. 5. Sunlight scarcity is not the driver here, since the same plants often sit in full sun. _Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 30 "Plant Form and Physiology", section 30.5 Transport of Water and Solutes in Plants_
Solve this in the app — ICAR JRF practice & 24k+ MCQs →
Related questions