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