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