Explanation: Xerophytes are the plants growing in water scarcity. Reduces Water Loss. Leaves are succulent (e.g. The stomata are also sunken i.e., located in depressions. Cortex: It is divisible into three parts; hypodermis, palisade and parenchyma. These plants show a number of adaptations to conserve water, like presence of thick cuticle layer, reduction in size of leaves to scales or spines, multilayered epidermis and sunken stomata in leaves.
II. This organization is to protect the stomata, which can show peripheral photosynthetic tissue and central water storage issue (diagrammatic); B, a portion (detailed) showing thick cuticle, thickenings on the radial and outer walls of the epidermal cells and sunken stomata exist in furrows. Spongy parenchyma and palisade parenchyma are present. In Nerium, the stomata are present in Sunken pits. The leaves of the Xerophytic plants have cuticular wax. Which of the following are correct for conifers ? 6. Sunken stomata are present in the grooves. Stomata are … Openings found on the under surface of the dorsiventral leaf are Stomata. All the following are adaptations in desert plants to minimize water loss except: 1. The epidermis consists of the upper and lower epidermis; it aids in the regulation of gas exchange via stomata. 5. ), sclerenchymatous and several layered hypodermis (e.g. On leaves, the cuticle is 1/10 to 14 micrometers thick. These are covered with hairs.
I. Needle - like leaves to reduce surface area. are present. True & False. The depressions also have numerous hairs. A thick cuticle is present in the outer surface of the epidermal cells. Leaves of Nerium are characterised by multilayered epidermis and a thick layer of cuticle. Mention, if the following statements are True or False. All of these are xerophytic characters. C 3 photosynthesis 3. Thick cuticle 2. Multilayered epidermis (e.g. Plants have an extensive root system to tap underground water. Sunken stomata to reduce water loss. Presence of myrosin cells, which are laticiferous cells, in the hypodermal region is another characteristic feature (see Fig. They bear thick cuticles and sunken stomata on the surface of their leaves to reduce transpiration. Nerium sp. These plants show a number of adaptations to conserve water, like presence of thick cuticle layer, reduction in size of leaves to scales or spines, multilayered epidermis and sunken stomata in leaves. Guttation takes place generally at Night. Xerophytes are the plants growing in water scarcity. … The stomata are restricted to lower surface only. 2.23). CAM pathway 4.
III. Sunken stomata 7.
IV. Sunken stomata are present. Pinus sp.) Aloe sp.). Solution: Conifers have a number of xerophytic characters such as needle-like (e.g., Pinus), scale-like (e.g., Thuja) or small and leathery leaves (e.g., Araucaria), thick cuticle, sderenchymatous hypodermis and sunken stomata to reduce transpiration. Sunken stomata are present in the epidermis. In Capparis aphylla stem, the epidermis is covered with a thick cuticle. The epidermis is one layer thick, but may have more layers to prevent transpiration. Thick cuticle on leaves. Mesophyll is well differentiated. ... use the cuticle in tandem with their stomata to conserve water. Plants found in deserts are well adapted to cope with harsh desert conditions such as water scarcity and scorching heat. Hypodermis is made of a T-shaped group of sclerenchyma in the ridges. The cuticle is located outside the epidermis and protects against water loss; trichomes discourage predation. Thick cuticle is present in the epidermal layer. 8. 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