The stomata are also sunken i.e., located in depressions. Presence of myrosin cells, which are laticiferous cells, in the hypodermal region is another characteristic feature (see Fig. Hypodermis is made of a T-shaped group of sclerenchyma in the ridges. 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. Sunken stomata Thick cuticle on leaves. They bear thick cuticles and sunken stomata on the surface of their leaves to reduce transpiration. 2.23). Sunken stomata to reduce water loss. 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. 7. A thick cuticle is present in the outer surface of the epidermal cells.
III. 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. 8. 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. 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. CAM pathway 4. The leaves of the Xerophytic plants have cuticular wax. On leaves, the cuticle is 1/10 to 14 micrometers thick.
IV. The epidermis consists of the upper and lower epidermis; it aids in the regulation of gas exchange via stomata. Plants found in deserts are well adapted to cope with harsh desert conditions such as water scarcity and scorching heat. C 3 photosynthesis 3. Mention, if the following statements are True or False. The cuticle is located outside the epidermis and protects against water loss; trichomes discourage predation. ), sclerenchymatous and several layered hypodermis (e.g. Aloe sp.). The depressions also have numerous hairs. In Nerium, the stomata are present in Sunken pits. Reduces Water Loss. The epidermis is one layer thick, but may have more layers to prevent transpiration. Thick cuticle 2. Sunken stomata are present. Thick cuticle is present in the epidermal layer. Nerium sp. True & False. Leaves of Nerium are characterised by multilayered epidermis and a thick layer of cuticle.
II. 6. Sunken stomata are present in the epidermis. Plants have an extensive root system to tap underground water. Cortex: It is divisible into three parts; hypodermis, palisade and parenchyma. … ... use the cuticle in tandem with their stomata to conserve water. All of these are xerophytic characters. Xerophytes are the plants growing in water scarcity. Guttation takes place generally at Night. Spongy parenchyma and palisade parenchyma are present. Explanation: Xerophytes are the plants growing in water scarcity. Pinus sp.) These are covered with hairs. Stomata are … Sunken stomata are present in the grooves. Leaves are succulent (e.g. Mesophyll is well differentiated. The stomata are restricted to lower surface only. Multilayered epidermis (e.g. are present.
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