leaves are modified into spines in

Most cactus morphologists have concluded that cactus spines are either modified leaves or modified bud scales (the difference is inconsequential because bud scales themselves are modified leaves). Answered - [Opuntias] [Australian Acacia] [Nepenthes] [Utricularia] are the options of mcq question The leaves are modified into spines in realted topics , NEET topics with 0 Attempts, 0 % Average Score, 1 Topic Tagged and 0 People Bookmarked this question which was asked on Nov 16, 2018 19:12 In Opuntia , the leaves of areoles are modified into is related to How well do you know about plant leaf?. check_circle Expert Answer. e.g., In Opuntia leaves of axillary branches are modified into spines. Solution Show Solution. Spines are sharp, pointed structures which are modified leaves. Besides, they also provide protection to the plant from grazing animals. Thorns. Cactus is a part of the Succulent family because it has fleshy stems which store water. They have variou adaptations to cut down transpiration:- 1. Median response … The leaves are modified into the spines which can be observed on the stems. In the many species of the spurge family… Bud Scales-are tough, overlapping, waterproof leaves that protect buds from frost, desiccation, and pathogens. 500+ VIEWS . Correct Answer: Opuntia. Leaves of cactus plants are modified into spines to reduce loss of water through transpiration. Spines of cactus plants are modified leaves or shoots located in the axil of a leaf. asked in Morphology of Flowering Plants by Lifeeasy Biology. Leaves become modified into spines in 2:29 2.4k LIKES. Give biological reasons for the following statements : In some xerophytes leaves are modified into spines - Biology. Part of the leaf modified into tendril in Clematis is Petiole Rachis Petiolules All the above Answer: 4 Q2. Link to raw image collection of modified leaves. Other articles where Spine is discussed: angiosperm: Leaf modifications: Spines are also modified leaves. winter. Leaves become modified into spines in :- Options (a) Pea (b) Onion (c) Silk Cotton (d) Opuntia. The spine primordia is produced at the base of the axillary bud's shoot apical meristem; the location where leaf primordia also grows. 2 views. They can be branched or simple. Answer this multiple choice objective question and get explanation and result.It is provided by OnlineTyari in English Leaves release water from the stomata to cool the plant. The stems of this plant appear like – leaf, termed as- phylloclades which perform the process of photosynthesis. Pea Onion Silk Cotton Opuntia Answer : D Related Video. Numerous plants have spines of course, but in cacti, spines occur in clusters in the axil of leaves, even though the leaves are usually microscopic. In Acacia nilotica and Zizyphus the stipules are modified into spines. In pea, the leaves are modified into tendrils to help them in climbing around support, in onion leaves are modified to fleshy succulent to store food. Know answer of objective question : The leaves are modified into spines in?. Though cactus spines are modified leaves, they do not contain any of the cells or tissues characteristics of leaves when they mature. because of the spines transpiration occurs less . Question 18. Register; Test; Home; Q&A; Unanswered; Categories; Ask a Question; Learn; Ask a Question. Assertion :- In some xerophytic plants stem becomes green , flat,leaf like and leaves are modified into spines . Homology: Leave It To the Plants. Like sharp-pointed daggers, they are a hazard when climbing into date palms to pick the fruit. Cactus spines are also known as modified bud scales, which also are modified leaves. The key difference between tendrils and spine is that tendrils are slender, coiling plant parts which are often modified leaves, leaf parts or stems while spine is a modified leaf, stipule or a part of leave that has a pointed end.. Plants have different types of structures in addition to leaves, stems and roots. To reduce loss of water through transpiration leaves of cactus plants are modified into spines. In the following photos of plants, the leaves are quite different from the "normal" leaves we envision. But for the succulent plants to be called Cactus, they need to have a special structure which is present in the Cactus family. In cacti, spines are wholly transformed leaves that protect the plant from herbivores, radiate heat from the stem during the day, and collect and drip condensed water vapour during the cooler night. ShelchavCactus spines are actually modified leaves. In cactus spines are found in groups which is called as areole. Different part of a leaf or entire leaf may be modified in to spines. Thank you for A2A. This process is called transpiration. Scale leaves: In some plants, like onion and ginger, thin and dry or thick and fleshy scale leaves are present.Their function is to protect buds. Leaf-Spines: In Hakea and Opuntia the whole leaves are modified into spines. In prickly poppy, leaves bear spines on the margin. Check out a sample Q&A here. * See Answer *Response times vary by subject and question complexity. Stipular Spines: Stipules can become modified into spiines for defense. Explain its use to the plant.
Reason :-In xerophytic areas rate of transpiration is high , so plants develop various adaptions to minimize transpiration. What is a tendril ? ADVERTISEMENT. 500+ SHARES. For example in They give protection to the plants from herbivores. 0 votes . Each leaf has a very different shape and function, yet all are homologous structures, derived from a common ancestral form.The pitcher plant and Venus' flytrap use leaves to trap and digest insects. These spines help in storing water in the steams by reducing the amount of transpiration. Stipules and Stipular Spines. Succulence: In a dry environment, leaves may either become reduced, like in cacti, or, else, become succulent. In such cases the stems become green and carry on photosynthesis. 4. Succulent leaves not only retain lots of moisture but also have a lower surface to volume ratio. Midrib modified into tendril, e.g., Nepenthes. It helps if you think of cactus as a large stem with leaves (spines). Left: A simple leaf in which the blade is not divided into leaflets. Give biological reasons for the following statements : In some xerophytes leaves are modified into spines. Bud scales form before the onset of unfavorable growing seasons i.e. No, the cactus performs this through stems as the leaves are modified into spines. 300+ VIEWS. It is important for them to conserve water. Leaves are modified into spines : Opuntia Stem has sharp thorns : _____ ← Prev Question Next Question → 0 votes . The basal leaf segments (pinnae) are modified into stiff pines. Know answer of objective question : The leaves are modified into spines in ?. For example in Opuntia minute leaves of axillary buds develop into spines. answered by Afreen Ibrahim. Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes! Check Answer and Solu Thorns are woody, sharp, straight and pointed structures. They give protection to the plants from herbivores. Loss of water from the leaves tend the roots to pull more water from the ground. In Opuntia, the leaves of areoles are modified into Spines Glochidia Scales Tendrils Answer: 1 Q4. ask related question comment. Petiole is modified into tendril in Gloriosa Passiflora Nepenthes Luffa Answer: 3 Q3. 300+ SHARES. The leaves in a cactus plant are modified into spines to prevent the loss of water. Spines: Leaves are modified into spines to reduce water loss, like cactus. Leaf-spines : In this type the leaves become wholly or partially modified into sharp pointed structures known as spines. This modification helps the plant to cut down transpiration and also protects the plants against the attacks of grazing animals. Two examples of true spines (modified leaves). Remember. In desert plants,the leaves are modified into spines 2 See answers Geetu18 Geetu18 Answer: spines are hard so, it is not easy to loose water through spines. CONTINUE READING BELOW. Xerophytes are plants growing in dry climate. See Answer. Question By default show hide Solutions. Want to see this answer and more? Give a biological reason why in some xerophytes ,leaves are modified into spines. Angiosperm - Angiosperm - Leaf modifications: Whole leaves or parts of leaves are often modified for special functions, such as for climbing and substrate attachment, storage, protection against predation or climatic conditions, or trapping and digesting insect prey. AIPMT 2015: The leaves are modified into spines in (A) Nepenthes (B) Australian Acacia (C) Opuntia (D) Utricularia (E) Tomarix.. Leaves are modified into spines, as the normal leaves transpire more water. Leaves are modified into spines : Opuntia Stem has sharp thorns : _____ Login. Want to see the step-by-step answer? The morphological nature of such spines can be pointed out by the presence of a bud in their axis. Click here to get an answer to your question ️ why are the leaves of cactus modified into spines kushal9567 kushal9567 10.03.2018 Science Primary School Why are the leaves of cactus modified into spines 2 See answers Brainly User Brainly User Hey mate..! Note the sharp spines on the cactus above. Solution: The spines present on Opuntia represent the reduced leaves. Any part of the leaf may get modified in to spine. Why are the leaves of cactus plants modified into... morphology-of-flowering-plants. Thorns also provide protection to the plant from … Leaf MCQ (Multiple Choice Questions and Answers) Q1. The cactus plant grows in a desert where there is a shortage of water. These questions will build your knowledge and your own create quiz will build yours and others people knowledge. Cacti are xerophytes which have to survive in dry conditions. Leaves become modified into spines in :- 600+ LIKES. answer comment .. 1 Answer. (ii) Spines : A pointed structure formed by the modification of entire leaf or part of a leaf is called a spine. Leaves are modified into spines in Opuntia (xerophytes) so as to reduce the surface area and minimize rate of water loss by evaporation and transpiration. The leaf parts become modified into spines in order to protect the plants from grazing animals and excessive transpiration. Answer this multiple choice objective question and get explanation and result.It is provided by OnlineTyari in English View All. therefore, it helps desert plant to save water in there body. Modified Leaves. No, the leaves are modified into spines spines ( modified leaves in prickly poppy, leaves wholly! Own create quiz will build your knowledge and your own create quiz build. ( ii ) spines: leaves are modified into spines in order protect! In Cacti, or, else, become succulent leaves when they mature straight. 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