Root hairs are absent. Root pockets are also the root caps present in hydrophytes. Watch Video Solution On Doubtnut App Q-13 - 13843459 The cells of … As a result of which root cap is absent in hydrophytes. In some floating plants such as Utricularia, Ceratophyllum, etc., no roots are developed, and in submerged plants such as Vallisneria, Hydrilla etc., water dissolved mineral salts and gases are absorbed by … By definition, succulent (1) Roots : (i) Root system is very much reduced in some floating plants (Wolffia, Utricularia) and in submerged plants (Ceratophyllum) the roots are absent. Fixed floating hydrophytes done clear. The root cap is absent in some parasitic plants and some aquatic plants, in which a sac-like structure called the root pocket may form instead. Pistia. View Solution play_arrow; question_answer15) The root that never does primary function is ... A root cap is absent in the root of . I. 2. 2. The waxy surface of the floating leaves of the hydrophytes prevents [Orissa JEE 2005] A) Respiration done clear. Q.34. 3. 4. B) Young root. (a) Periblem (b) Phellogen (c) Dermatogen (d) pleorome Q3. In hydrophytes root cap is absent eg. Root cap is absent in (1) Xerophytes (2) Hydrophytes (3) Mesophytes (4) Halophytes 76. Root cap is absent in [BHU 1994, 2000] - 3419261 Root cap is absent in [BHU 1994, 2000] A) Hydrophytes B) Lithophytes C) Xerophytes D) Mesophytes Dependent sporophyte c. Free-living gametophyte d. Haplontic life cycle Plants found in places where excess of water is present are called hydrophytes. This is the meristematic region of the root which produces new cells by cell division. In hydrophytes, root cap is absent. 3. • In free floating hydrophytes root pockets are present. In many plants, stomata are found only on thee lower surface of the leaf. Roots with well -developed root cap. [Karnataka 2003] 7. The stem is soft, thin and flexible in hydrophytes. Answer (d) The main function of root-cap is to protect the growing apex from soil particles. Q2. 75. Hydrophytic Adaptations are: i. Root system is not well developed. Root pocket present instead of root cap which protect roots from injury, holds the roots downward and act as water reservoir. Morphological Adaptive feature: Root: Root system fibrous and adventitious with dense and adequate volume, which helps to maintain its balance with the aerial part. In place of root cap, root pocket is pre sent which is fil led by air. The stem is long, slender, weak, spongy and flexible type in submerged hydrophytes… a. Heterospory b. Plant growing in water (hydrophytes) or on another plant (epiphytes) or in another plant (parasites) are devoid of root-cap. § It produces cluster of fine thread like structures known as root hairs. In some plants like Lemna, roots perform the act of balancing the plant body. Root cap contain more amount of golgi body which secrete mucilage which make the root slimy. so maximum growth in root takes place behind the apex. B) Stilt root of Pandanus done clear. Root cap is absent in a) Mesophytes b) Hydrophytes c) Epiphytes d) Xerophytes 13. Note : Root cap is absent in Eichhornia . As hydrophytes are generally aquatic plants, no such protection is needed for their roots. Such plants develop the following morphological and anatomical adaptations. ... totally absent in hydrophytes In: Nymphaea, special type of star shaped lignified cells (asterosclereids) present which will provide mechanical support. Generally root cap is single layered but in Pandanus (screw pine), root cap is multilayered. 10 . 2. A root-cap is usually absent in the roots of (a) Hydrophytes (b) Epiphytes (c) Parasites (d) All of the above. A) Hanging prop root of Banyan done clear. Root hairs and root cap are absent. Palisade parenchyma is absent in leaves of .. Region of maturation : From this region some of the epidermal cells form very fine and delicate, D. Roots, stems, and leaves. Note : 1. Root cell walls usually remain abnormally thin. Leaves in hydrophytes are thin and ribbon like. Q60. Ans. MERISTEMATIC ZONE. § Root hairs arise from the epidermal cell hence it … Root Hair Zone § It is present above elongation zone. Secondary growth absent. In some floating plants such as Utricularia, Ceratophyllum, etc., no roots are evolved, and in submerged plants such as Vallisneria, Hydrilla, etc., water dissolved mineral salts and gases are absorbed by their whole surface. Adding salt and sugar to food substances helps in preserving them for a longer duration. Root cap is absent in (a) Halophytes (b) Hydrophytes (c) Xerophytes (d) Homophytes [R.P.M.T. €¢ root cap is made up of a dead tissue called calyptrogen central. One of the leaf If roots are present ( Lemna ) or feebly.. 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