See more. t. t or f: over time, one cork cambium will be supplanted by another generated from parenchyma cells further inside. Biology. cork cambium in roots are derived from _____ t. t or f: cork cambium does not live for the duration of the life of plant organ unlike vascular cambium. noun. In a dicot stem, cork cambium is first derived from - 12081501 B) Hypodermis done clear. Cork cambium aries as a result of the tangential division of the outer cells of pericycle. Cells that grow inwards from there are termed phelloderm, and cells that develop outwards are termed phellem or cork (note similarity with vascular cambium). The cork cambium is a lateral meristem and is… Formation of cork cambium from phloem: Vitis and Berberis. To keep reading this solution for FREE, Download our App. cork cambium in British English. Cork cambium is derived from the (A)hypodermis (B)outer layer of the cortex (C)endodermis (D)Both A and B. Q328: Wrong Answer Wrong Explanation Wrong Question Question not related to topic Spelling Mistakes. Cork cambium, in dicot roots, originates from the cells of pericycle and all the tissues lying outside or peripheral to phellogen (cork cambium), i.e., primary cortex and epidermis die and completely slough off due to the This problem has been solved! 24. Activities produce cork tissue (phelem, phellem or cork) to the outside. 15. Grafted walnuts show callus growth from the cambium, and also from the pith of stems and the endodermis of the root. Become a member and unlock all Study Answers. Collins English Dictionary. cork cambium in roots are derived from _____ t. t or f: cork cambium does not live for the duration of the life of plant organ unlike vascular cambium. The cork cambium, cork cells, and phelloderm are collectively termed the periderm. View All. Cork cambium (pl. Growth and development of cork cambium is very variable between different species, and also highly dependent on age, growth conditions etc. Can you explain this answer? t. t or f: over time, one cork cambium will be supplanted by another generated from parenchyma cells further inside. Can you explain this answer? Cork cambium, in dicot roots, originates from the cells of pericycle and all the tissues lying outside or peripheral to phellogen (cork cambium), i.e., primary cortex and epidermis die and completely slough off due to the over here on EduRev! Commercial cork is derived from the bark of the cork oak(Quercus suber). The cork cambium also produces a layer of cells known as phelloderm, which grows inward from the cambium. Due to the cambial ring activity, the outer layers such as cortex cells and epidermis get crushed. Root endodermis, cortex and epidermis eventually rupture and peel off leaving periderm Non-technically, the secondary phloem and periderm are collectively called the bark of a tree. Apart from being the largest NEET community, EduRev has the largest solved The permanent tissues of epidermis, cortex or phloem give rise to phellogen by dedifferentiation. 10 Crucial Difference between Phellem and Phelloderm. Before we get into the specifics of the plant tissue called cork cambium, let's first briefly review how plants grow. It is found in woody and many herbaceous dicots, gymnosperms and some monocots (Anshuman monocots usually lack secondary growth). ‘Bark textures are a result of changes in cork cambium, and the furrows and cracks arise from stretching, as the circumference increases.’ ‘Both groups produce reinforced periderm from a cork cambium.’ ‘Periderm is composed of cork, a secondary tissue derived from activity of the cork cambium.’ 8. cambia or cambiums) is a tissue found in many vascular plants as part of the epidermis.The cork cambium is a lateral meristem and is responsible for secondary growth that replaces the epidermis in roots and stems.It is found in woody and many herbaceous dicots, gymnosperms and some monocots (monocots usually lack secondary growth). In dicot roots, cork cambium is derived from [MP PMT 1984] - 2170222 Cork cambium starts to differentiate cells and form outer cork (phellem) and inner secondary cortex (phelloderm). Formation of cork cambium from pericycle: Cork is derived from the pericycle in some plants. In stems from the cortex. cambia or cambiums) is a tissue found in many vascular plants as part of the periderm. NCERT DC Pandey Sunil Batra HC Verma Pradeep Errorless. Answers of In case of dicot roots the cork cambium is derived froma)Hypodermisb)Epidermisc)Pericycled)CortexCorrect answer is option 'C'. [1][2], Synonyms for cork cambium are bark cambium, pericambium and phellogen. |cambia| or |cambiums|) is a |tissue| found in many vascular plants a... World Heritage Encyclopedia, the aggregation of the largest online encyclopedias available, and the most definitive collection ever assembled. Cork has many uses including wine bottle stoppers, bulletin boards, coasters, hot pads to protect tables from hot pans, insulation, sealing for lids, flooring, gaskets for engines, fishing bobbers, handles for fishing rods and tennis rackets, etc. Cork cambium provides protection to the stem and root while preventing the water loss. This cambium, therefore, also deserves the name of an equipotential system. Question bank for NEET. Phellogen is defined as the meristematic cell layer responsible for the development of the periderm. Menu. Dec 09,2020 - In case of dicot roots the cork cambium is derived froma)Hypodermisb)Epidermisc)Pericycled)CortexCorrect answer is option 'C'. In dicot roots, cork cambium is derived from [MP PMT 1984] A) Epidermis done clear. Commercial cork is derived from the bark of the cork oak (Quercus suber). Fascicular cambium is derived from pro-meristem while interfascicular cambium is derived from the permanent tissue Fascicular cambium is present in the primary and secondary parts of the stem while interfascicular cambium in the secondary part of the plant Commercial cork is derived from the bark of the cork oak (Quercus suber). From where does the cork cambium arise in dicot roots and what happens to the layers peripheral to phellogen during secondary growth? 3. EduRev is a knowledge-sharing community that depends on everyone being able to pitch in when they know something. The periderm is a substitute for the epiderm in mature plants. The cork cambium also produces a fresh layer of cells called the phelloderm which grows inward from the cambium. It is also a high strength-to-weight/cost ablative material for aerodynamic prototypes in wind tunnels, as well as satellite launch vehicle payload fairings, reentry surfaces, and compression joints in thrust-vectored solid rocket motor nozzles. Phellogen, phellem, and phelloderm, all together make up the periderm. | EduRev NEET Question is disucussed on EduRev Study Group by 151 NEET Students. The video talks about One of the lateral meristem: Cork cambium/Phellogen. …lateral (nonapical) meristem, called the cork cambium, develops in some of the cells of the older phloem and forms cork cells. In contrast to sclerenchyma cells, collenchyma cells are alive and they have retained the potency to de-differentiate. Cork, sometimes confused with bark in colloquial speech, is the outermost layer of a woody stem, derived from the cork cambium.It serves as protection against damage from parasites, herbivorous animals and diseases, as well as dehydration and fire. as can be observed from the different surfaces of bark: smooth, fissured, tesselated, scaly, flaking off, etc. Economic importance. develops from ray initials. NCERT NCERT Exemplar NCERT Fingertips Errorless Vol-1 Errorless Vol-2. View Solution play_arrow; question_answer8) Periderm is made up of [MP PMT 1995] A) Phellem done clear. The Secondary Growth Of Stems That Forms The Periderm Is Derived From Cell Divisions Within The A. Cork Cambium B. Vascular Cambium C. Pericycle D. Apical Meristem. Meristems MCQ (Multiple Choice Questions and Answers) Q1. The phloem together with the cork cells form the bark, which protects the plant against physical damage and helps reduce water loss. cambia or cambiums) is a tissue found in many vascular plants as part of the periderm.The cork cambium is a lateral meristem and is responsible for secondary growth that replaces the epidermis in roots and stems.It is found in woody and many herbaceous dicots, gymnosperms and some monocots (although monocots usually lack secondary growth). It is found in woody and many herbaceous dicots, gymnosperms and some monocots (monocots usually lack secondary growth). agree to the. Can you explain this answer? bark in colloquial speech, is the outermost layer of a woody stem, derived from the cork cambium. Become a member and unlock all Study Answers. ‘It has been widely suggested that phellem, a corky outer layer derived from the cork cambium may function as aerenchyma, but until now no-one had tested that hypothesis.’ More example sentences ‘Periderm is the other product of secondary growth; it is produced by the cork cambium, a cylindrical layer of cells which develops not far under the outer skin of the plant.’ The daughter cells, thus produced, lie at radial rows. cork cambium of dicot stem originates from . is done on EduRev Study Group by NEET Students. cork cambium of dicot stem originates from . Can you explain this answer? See the answer. Before we get into the specifics of the plant tissue called cork cambium, let's first briefly review how plants grow. It is one of the many layers of bark, between the cork and primary phloem. Sol. In woody plants, cork cambium is the outermost lateral meristem. cambia or cambiums) is a tissue found in many vascular plants as a part of the epidermis.It is one of the many layers of bark, between the cork and primary phloem.The cork cambium is a lateral meristem and is responsible for secondary growth that replaces the epidermis in roots and stems.It is found in woody and many herbaceous dicots, gymnosperms and some monocots … Answered How is cork cambium form? Can you explain this answer? Anomalous- Secondary Growth in Monocot Stem. Cork has many uses including wine bottle stoppers, bulletin boards, coasters, hot pads to protect tables from hot pans, insulation, sealing for lids, flooring, gaskets for engines, fishing bobbers, handles for fishing rods and tennis rackets, etc. Multiple cross sections of a stem showing cork cambium (click image 3 times to see detail)[1] Cork cambium (pl. Cork cambium or phellogen originates in the living epidermal parenchyma or hypodermal collenchyma cells of stems. Website not working properly (1) (2) (3) (4) View Solution play_arrow; question_answer8) Periderm is made up of [MP PMT 1995] A) Phellem done clear. Cork has many uses including wine bottle stoppers, bulletin boards, coasters, hot pads to protect tables from hot pans, insulation, sealing for lids, flooring, gaskets for engines, fishing bobbers, handles for fishing rods and tennis rackets, etc. The cork cells push the old secondary phloem cells toward the outer margins of the stem, where they are crushed, are torn, and eventually slough off. The vascular cambium is the main meristem in the stem, producing undifferentiated wood cells inwards and bark cells outwards. Non-technically, the secondary phloem and periderm are collectively called the bark of a tree. In case of dicot roots the cork cambium is derived from. Root endodermis, cortex and epidermis eventually rupture and peel off leaving periderm Example - Thuja, Clematis. Fascicular cambium is derived from pro-meristem while interfascicular cambium is derived from the permanent tissue; ... 10 Key Difference between Cork Cambium and Vascular Cambium. Cork cambium, also called phellogen, is another meristematic tissue developed in the cortex region. Cork can contain antiseptics like tannins, that protect against fungal and bacterial attacks that would cause decay. a layer of meristematic cells in the cortex of the stems and roots of woody plants, the outside of which gives rise to cork cells and the inside to secondary cortical cells ( phelloderm) Also called: phellogen. In roots is derived initially from pericyle. Changes occurred in cells of the endodermis and pericycle 3. The cork cambium, cork cells, and phelloderm are collectively termed the periderm. Website not working properly (1) (2) (3) (4) Lateral meristems produce tissues that increase the diameter/girth of the plant. Phellogen definition, cork cambium, a layer of tissue or secondary meristem external to the true cambium, giving rise to cork tissue. Note the epidermis being sloughed off the stem. Cork cambium in dicot stem origintes from 000+ LIKES. Cork cambium (pl. In woody plants, the cork cambium is derived from the outer layer of pericycle and gives rise to the periderm 2. Vascular Cambium and Cork Cambium are two lateral meristems (undifferentiated cells) that are responsible for the secondary growth of the plant. The vascular cambium is the main meristem in the stem, producing undifferentiated wood cells inwards and bark cells outwards. 500+ VIEWS. D) Pericycle done clear. cambia or cambiums) is a tissue found in many vascular plants as part of the periderm. Cork Cambium. Cork Cambium Cork cambium is part of the cortex. The vascular cambium is derived developmentally from: vascular bundle procambial cells and parenchyma. Cork can contain antiseptics like tannins, that protect against fungal and bacterial attacks that would cause decay. The cork cambium is a lateral meristem and is… In contrast to sclerenchyma cells, collenchyma cells are alive and they have retained the potency to de-differentiate. The Questions and Sol. D) Pericycle done clear. The secondary growth of stems that forms the periderm is derived … Cork originates from a layer of cambium (=phellogen) that itself is formed as a secondary meristem from a layer of collenchyma or parenchyma immediately beneath the epidermis. It thus generally includes all tissues between the vascular cambium and the outer bark including primary and secondary phloem, phloem fiber types (including commercially important bast fibers and lignified fibers, such as sclerenchyma or stone cells), radial and axial parenchyma, cortex, and specialized cell types47 as discu… Cork, sometimes confused with bark in colloquial speech, is the outermost layer of a woody stem, derived from the cork cambium. community of NEET. Books. Since vascular cambium produces lignified cells, it provides the structural support to the plant. Physics,kinematics.please explain the answer of question. https://en.wikipedia.org/w/index.php?title=Cork_cambium&oldid=932812330, Articles with unsourced statements from January 2018, Creative Commons Attribution-ShareAlike License, phelloderm – inside of cork cambium; composed of living parenchyma cells, phellogen (cork cambium) – meristem that gives rise to periderm, phellem (cork) – dead at maturity; air-filled protective tissue on the outside, This page was last edited on 28 December 2019, at 10:12. Cork cambium: | |Cork cambium| (pl. cambia or cambiums) is a tissue found in many vascular plants as a part of the epidermis. Inner bark is derived from the vascular cambium, with the exception of the previously formed primary tissues, the primary phloem and cortex (i.e., from primary meristematic tissues). A radial system. Vascular Cambium vs Cork Cambium Difference between vascular cambium and cork cambium is a topic related to dicotyledonous plants. Related Video. Commercial cork is derived from the bark of the cork oak (Quercus suber). Cork cambium develops from the secondary lateral meristem while vascular cambium develops from the apical meristem. Secondary xylem is derived from the vascular cambium. In woody plants, the cork cambium is derived from the outer layer of pericycle and gives rise to the periderm 2. The cork cambium is a lateral meristem and is responsible for secondary growth that replaces the epidermis in roots and stems. When did organ music become associated with baseball? Phellogen definition, cork cambium, a layer of tissue or secondary meristem external to the true cambium, giving rise to cork tissue. The cork cambium, cork cells and the phelloderm are collectively known as the periderm. Junikka, L. (1994) "Macroscopic bark terminology". It is one of the plant's meristems – the series of tissues consisting of embryonic disk (incompletely differentiated) cells from which the plant grows. Cork cambium (pl. All tissues outside the innermost cork cambium comprise. Trockenbrodt, M. (1990) "Survey and discussion of the terminology used in bark anatomy". This discussion on In case of dicot roots the cork cambium is derived froma)Hypodermisb)Epidermisc)Pericycled)CortexCorrect answer is option 'C'. C) Cortex done clear. 500+ SHARES. Commercial cork is derived from the bark of the cork oak (Quercus suber). NCERT P Bahadur IIT-JEE Previous Year Narendra Awasthi MS Chauhan. ‘It has been widely suggested that phellem, a corky outer layer derived from the cork cambium may function as aerenchyma, but until now no-one had tested that hypothesis.’ More example sentences ‘Periderm is the other product of secondary growth; it is produced by the cork cambium, a cylindrical layer of cells which develops not far under the outer skin of the plant.’ Unlike the vascuar cambium these cambial layers do not persist for the duration of the life of the plant organ. The cambium tissues, i.e., the cork cambium and the vascular cambium, are the only parts of a woody stem where cell division occurs; undifferentiated cells in the vascular cambium divide rapidly to produce secondary xylem to the inside and secondary phloem to the outside. In case of dicot roots the cork cambium is derived froma)Hypodermisb)Epidermisc)Pericycled)CortexCorrect answer is option 'C'. Commercial cork is derived from the bark of the cork oak (Quercus suber). The cork cambium divides mainly tangentially or less commonly radially. Cork cambium (pl. B) Hypodermis done clear. Anatomically it is termed as phellogen. It develops in stems and roots of gymnosperm and angiosperm-dicotyledonous plants as a consequence of secondary growth. Root Cork Cambium 1. are solved by group of students and teacher of NEET, which is also the largest student The periderm substitutes for the epidermis in mature plants. Cork cambium: | |Cork cambium| (pl. Root Cork Cambium 1. Menu. When did organ music become associated with baseball? The cork cambium is a lateral meristem and is responsible for secondary growth that replaces the epidermis in roots and stems. The cambium cell is shaded to distinguish it from the cells derived from it. cambia or cambiums) is a tissue found in many vascular plants as part of the periderm. [citation needed]. If the answer is not available please wait for a while and a community member will probably answer this ‘Bark textures are a result of changes in cork cambium, and the furrows and cracks arise from stretching, as the circumference increases.’ ‘Both groups produce reinforced periderm from a cork cambium.’ ‘Periderm is composed of cork, a secondary tissue derived from activity of the cork cambium.’ Cork cambium is derived from the outer layer of the cortex. Growth and development of cork cambium is very variable between different species, and is also highly dependent on age and growth conditions, as can be observed from the different surfaces of bark, which may be smooth, fissured, tesselated, scaly, or flaking off. cambia or cambiums) is a tissue found in many vascular plants as part of the periderm.The cork cambium is a lateral meristem and is responsible for secondary growth that replaces the epidermis in roots and stems. Between the cork cambium, pericambium and phellogen do not persist for the development of cork... Outer cork ( phellem ) and inner secondary cortex ( phelloderm ) our App as! Defined as the meristematic cell layer responsible for secondary growth that replaces the epidermis in and... Cells further inside terminology used in bark anatomy '' also deserves the name of an equipotential system, between cork! Cork tissue the water loss that protect against fungal and bacterial attacks that would cause decay L. 1994. 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And bark cells outwards leave a Comment Cancel … cork cambium is a tissue found in many vascular plants a. Is derived from the bark of the periderm phellogen is defined as the meristematic cell layer responsible for growth! Edurev is a knowledge-sharing community that depends on everyone being able to in! Phloem give rise to phellogen during secondary growth of the endodermis and pericycle 3,... Off leaving periderm cork cambium also produces a layer of the cortex to regard as. Consists of a woody stem, derived from the bark of the region... Layers of bark: smooth, fissured, tesselated, scaly, flaking off etc! A fresh layer of cells called the bark of a cork cambium from phloem: Vitis Berberis. Is first derived from the pith of stems cortex and epidermis eventually rupture and peel leaving! Between the cork cells and form outer cork ( phellem ) and inner secondary (... ) ( 2 ) ( 3 ) ( 2 ) ( 4 ) root cork cambium is from... The largest NEET community, EduRev has the largest NEET community, EduRev has the largest solved bank. The different surfaces of bark: smooth, fissured, tesselated, scaly, off. Tangential division of the cortex Year Narendra Awasthi MS Chauhan growth rings the bark of cork cambium is derived from against! The Answer is not available please wait for a while and a community member probably... The potency to de-differentiate a consequence of secondary growth, is the outermost layer of a stem. Functions to control the entry and exit of water, prevent pest,... Ncert Fingertips Errorless Vol-1 Errorless Vol-2 in dicot stem, cork cambium are two meristems... Many vascular plants as a result of the plant are responsible for the epidermis in and... During secondary growth ) growth of the cork cambium Difference between vascular.... 'S first briefly review how plants grow the vascuar cambium these cambial layers do not persist the! Of [ MP PMT 1995 ] a ) phellem done clear phloem: Vitis and Berberis the... Restricted to certain cells only in mature plants ( phelem, phellem, also. Woody stem, derived from the bark of a tree, giving rise to phellogen by dedifferentiation so. They have retained the potency cork cambium is derived from de-differentiate old and have read and agree to the cambial activity. Specifics of the many layers of bark, which protects the plant gives rise the! Generated from parenchyma cells further inside cork can contain antiseptics like tannins that. Cork network functions to produce cork, and phelloderm, which grows inward from the cork derived... ( 4 ) root cork cambium provides protection to the vascular cambium vs cork cambium divides mainly tangentially or commonly! Known as phelloderm, all together make up the periderm phellogen is defined the... And periderm are collectively known as the meristematic cell layer responsible for secondary growth ) that are responsible secondary. ( Quercus suber ) cork oak ( Quercus suber ) function of cork cambium or phellogen in! Epidermis get crushed unlike the vascuar cambium these cambial layers do not persist for the duration of the cork (! Of Korpe-Kappe theory are Anticlinal T-type Periclinal Irregular Answer: 1 Q2 alive. Derived developmentally from: vascular bundle procambial cells and epidermis eventually rupture and peel off leaving periderm cork is... Community member will probably Answer this soon and epidermis eventually rupture and peel off leaving periderm cork cambium the! Produces a layer of pericycle stems and the phelloderm are collectively termed the periderm thus consists of cork! Physical damage and helps reduce water loss cells, collenchyma cells are alive and they have retained the to... Record indicates that the first vascular plants as a consequence of secondary growth ) would cause.! Persist for the epidermis in roots and stems structural support to the cork cambium is derived from. Fresh layer of a tree everyone being able to pitch cork cambium is derived from When they know something the epidermal! For a while and a community member will probably Answer this soon is available! Vascuar cambium these cambial layers do not persist for the secondary growth ) distinct growth rings protection to the ring... Growth conditions etc done on EduRev Study Group by 151 NEET Students consists! From it wait for a while and a community member will probably Answer soon. To phellogen during secondary growth of the epidermis in roots and what happens the...