Which one among the following is not a feature of Xerophytes?

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  1. Smaller leaves
  2. Large number of stomata
  3. Waxy cuticle
  4. Stomata in pits

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Option 2 : Large number of stomata
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The correct answer is  Large number of stomata.

Key PointsFeatures of Xerophytes

  • Xerophytes are plants adapted to survive in environments with very little water, such as deserts.
  • Smaller leaves: Xerophytes often have smaller leaves to reduce the surface area for water loss through transpiration. Hence, statement 1 is correct.
  • Waxy cuticle: These plants typically have a thick, waxy cuticle on their leaves and stems to minimize water loss. Hence, statement 3 is correct.
  • Stomata in pits: The stomata (pores for gas exchange) are often located in pits to reduce water loss. This adaptation helps to trap moisture and reduce the rate of transpiration. Hence, statement 4 is correct.
  • Large number of stomata: Xerophytes generally have fewer stomata to minimize water loss. Having a large number of stomata would increase water loss, which is not a characteristic feature of xerophytes. Hence, statement 2 is incorrect.

Additional Information

  • Xerophytes are a type of plant that has adapted to survive in an environment with little available water, such as deserts or ice- or snow-covered regions in the Alps or the Arctic.
  • Some examples of xerophytes include cacti, succulents, and some types of grasses.
  • Adaptations of xerophytes include:
    • Thickened leaves or stems to store water.
    • Deep root systems to access water from deeper soil layers.
    • Leaf modifications such as spines to reduce water loss.
    • CAM photosynthesis (Crassulacean Acid Metabolism) allows them to take in CO2 at night, reducing water loss.
  • Understanding the adaptations of xerophytes is crucial for agricultural practices in arid regions, as these plants can inform the development of drought-resistant crops.
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