Some vascular bundles are described as open
because these
(a) are surrounded by pericycle but no endodermis
(b) are capable of producing secondary xylem and
phloem
(c) possess conjunctive tissue between xylem and
phloem
(d) are not surrounded by pericycle.

1 Answer

Answer :

(b) are capable of producing secondary xylem and
phloem

Related questions

Description : In the dicot root the vascular cambium originates from (a) tissue located below the phloem bundles and a portion of pericycle tissue above protoxylem (b) cortical region (c) parenchyma between endodermis and pericycle (d) intrafascicular and interfascicular tissue in a ring.

Last Answer : (a) tissue located below the phloem bundles and a portion of pericycle tissue above protoxylem

Description : The xylem and phloem elements in the plant are surrounded by a layer of living cells called (a) Casparian strips (b) Pericycle (c) Stele(d) Endodermis

Last Answer : (b) Pericycle

Description : Vascular bundles in monocotyledons are considered closed because (a) there are no vessels with perforations (b) xylem is surrounded all around by phloem (c) a bundle sheath surrounds each bundle (d) cambium is absent.

Last Answer : (d) cambium is absent.

Description : Cork cambium and vascular cambium are (a) parts of secondary xylem and phloem (b) parts of pericycle (c) lateral meristem (d) apical meristem.

Last Answer : (c) lateral meristem

Description : Cork cambium and vascular cambium are (a) parts of secondary xylem and phloem (b) parts of pericycle (c) lateral meristem (d) apical meristem.

Last Answer : c) lateral meristem

Description : The transverse section of a plant shows following anatomical features : (i) Large number of scattered vascular bundles surrounded by bundle sheath (ii) Large conspicuous parenchymatous ground ... (a) Monocotyledonous stem (b) Monocotyledonous root (c) Dicotyledonous stem (d) Dicotyledonous root

Last Answer : (a) Monocotyledonous stem

Description : A narrow layer of thin walled cells found between phloem/bark and wood of a dicot is (a) cork cambium (b) vascular cambium (c) endodermis (d) pericycle.

Last Answer : (b) vascular cambium

Description : A major characteristic of monocot root is the presence of (a) vasculature without cambium (b) cambium sandwiched between phloem and xylem along the radius (c) open vascular bundles (d) scattered vascular bundles

Last Answer : (a) vasculature without cambium

Description : Closed vascular bundles lack (a) ground tissue (b) conjunctive tissue (c) cambium (d) pith.

Last Answer : (c) cambium

Description : 82. Closed vascular bundles lack (1) Pith (2) Ground tissue (3) Conjunctive tissue (4) Cambium

Last Answer : Cambium

Description : Why are xylem and phloem called vascular bundles?

Last Answer : Since xylem and phloem occur together they are called vascular bundles.

Description : Ground tissue includes (a) all tissues external to endodermis (b) all tissues except epidermis and vascular bundles (c) epidermis and cortex (d) all tissues internal to endodermis.

Last Answer : b) all tissues except epidermis and vascular bundles

Description : Where do the Casparian bands occur? (a) Epidermis (b) Endodermis (c) Pericycle (d) Phloem

Last Answer : (b) Endodermis

Description : Interfascicular cambium develops from the cells of (a) endodermis (b) pericycle (c) medullary rays (d) xylem parenchyma.

Last Answer : (c) medullary rays

Description : Cortex is the region found between (a) epidermis and stele (b) pericycle and endodermis (c) endodermis and pith (d) endodermis and vascular bundle.

Last Answer : (a) epidermis and stele

Description : Vascular cambium produces (a) primary xylem and primary phloem (b) secondary xylem and secondary phloem (c) primary xylem and secondary phloem (d) secondary xylem and primary phloem.

Last Answer : (b) secondary xylem and secondary phloem

Description : The vascular cambium normally gives rise to (a) primary phloem (b) secondary xylem (c) periderm (d) phelloderm.

Last Answer : (b) secondary xylem

Description : Secondary xylem and phloem in dicot stem are produced by (a) apical meristems (b) vascular cambium (c) phellogen (d) axillary meristems

Last Answer : (b) vascular cambium

Description : The vascular cambium normally gives rise to : (1) Primary phloem (2) Secondary xylem (3) Periderm (4) Phelloderm

Last Answer : 2) Secondary xylem

Description : Secondary xylem and phloem in dicot stem are produced by (1) Apical meristems (2) Vascular cambium (3) Phellogen (4) Axillary meristems

Last Answer : (2) Vascular cambium

Description : Pericycle of roots produces (a) mechanical support (b) lateral roots (c) vascular bundles (d) adventitious buds.

Last Answer : b) lateral roots

Description : What vascular tissue brings water and minerals to the leaves? a) phloem (pron: flow-em) b) xylem c) cambium d) rhizomes (pron: rye-zom)

Last Answer : ANSWER: B -- XYLEM

Description : Which are the first terrestrial plants to possess xylem and phloem?

Last Answer : Which are the first terrestrial plants to possess xylem and phloem?

Description : If xylem and phloem are arranged in the same radius, such a vascular bundle is called : (1) collateral (2) bicollateral (3) concentric (4) radial

Last Answer : (1) collateral Explanation: In the collateral type of vascular bundle, xylem and phloem are arranged side by side on the same radius. This may be either open or closed. Usually xylem is seen ... the inner side and phloem towards outer side. The collateral vascular bundle is also known as conjoint.

Description : Cork is formed from (a) cork cambium (phellogen) (b) vascular cambium (c) phloem (d) xylem.

Last Answer : (a) cork cambium (phellogen)

Description : A bicollateral vascular bundle is characterised by (a) phloem being sandwiched between xylem (b) transverse splitting of vascular bundle (c) longitudinal splitting of vascular bundle (d) xylem being sandwiched between phloem

Last Answer : (d) xylem being sandwiched between phloem.

Description : : Why are Xylem and Phloem called as vascular tissues?

Last Answer : Because they together constitute vascular bundle in plants.

Description : Why are Xylem and Phloem are called vascular or conducting tissues?

Last Answer : Since both xylem and phloem tissues transport materials, they are together called vascular tissues.

Description : If xylem and phloem are arranged in the same radius, such a vascular bundle is called : (1) collateral (2) bicollateral (3) concentric (4) radial

Last Answer : collateral

Description : Adventitious roots develop from (a) Epidermis (b) Pericycle or interfascicular parenchyma (c) Cortex (d) Endodermis

Last Answer : Ans:(b)

Description : Root Hairs arise from - (1) Cortex (2) Pericycle (3) Epidermis (4) Endodermis

Last Answer : (3) Epidermis Explanation: Root hairs are tubular-shaped tipgrowing cells that arise from epidermal cells known as trichoblasts, behind the tips of young roots. Like all tip-growing cells, root ... the addition of cell wall precursors to the tip delivered by vesicles from the endomembrane system.

Description : Casparian strip occurs in a (a) endodermis (b) exodermis (c) pericycle (d) epidermis.

Last Answer : (a) endodermis

Description : Casparian strips occur in (a) epidermis (b) pericycle (c) cortex (d) endodermis.

Last Answer : (d) endodermis.

Description : Casparian strips occur in (1) Epidermis (2) Pericycle (3) Cortex (4) Endodermis

Last Answer : 4) Endodermis

Description : Root Hairs arise from (1) Cortex (2) Pericycle (3) Epidermis (4) Endodermis

Last Answer : Epidermis

Description : As compared to a dicot root, a monocot root has (a) more abundant secondary xylem (b) many xylem bundles (c) inconspicuous annual rings (d) relatively thicker periderm.

Last Answer : (b) many xylem bundles

Description : scattered vascular bundles embedded in the ground tissue with no definite arrangement is found in

Last Answer : scattered vascular bundles embedded in the ground tissue with no definite arrangement is found in – Stem of monocots

Description : Jute fibre is extracted from ? a Xylem b Parenchyma c Secondary phloem d Epidermal layer

Last Answer : c Secondary phloem

Description : What happens in plants during vascularisation? (a) Differentiation of procambium, formation of primary phloem followed by formation of primary xylem (b) Differentiation of procambium followed ... xylem simultaneously (d) Differentiation of procambium followed by the formation of secondary xylem

Last Answer : (b) Differentiation of procambium followed by the formation of primary phloem and xylem simultaneously

Description : You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will you use to distinguish between the two? (a) Secondary xylem (b) Secondary phloem (c) Protoxylem (d) Cortical cells

Last Answer : (c) Protoxylem

Description : What tissue present in leaves of Pinus conducts food and water laterally? (a) Transfusion tissue (b) Phloem (c) Xylem (d) Medullary rays

Last Answer : Ans. ((a))

Description : The tissue that is involved in the transport of food material in plants is called: (a) parenchyma (b) phloem (c) sclerenchyma (d) xylem

Last Answer : Ans:(b)

Description : Which tissue is responsible for the passage of water in plants? (a) Sclerenchyma (b) Xylem (c) Phloem (d) Collenchynatous cells

Last Answer : Ans:(b)

Description : The food conducting tissue of a plant is (1) Phloem (2) Xylem (3) Parenchyma (4) Collenchyma

Last Answer : (1) Phloem Explanation: In vascular plants, phloem is the living tissue that carries organic nutrients, in particular, sucrose, a sugar, to all parts of the plant where needed. ... mainly with the transport of soluble organic material made during photosynthesis. This is called translocation.

Description : Is xylem (or phloem) homogenous tissue or heterogeneous tissue?

Last Answer : Xylem and phloem both are heterogeneous tissue and are made up of different type of cellular elements.

Description : Parenchyma is a type of ____ (a) simple tissue (b) complex tissue (c) xylem d) phloem

Last Answer : (a) simple tissue

Description : The food conducting tissue of a plant is (1) Phloem (2) Xylem (3) Parenchyma (4) Collenchyma

Last Answer : Phloem

Description : $ Secondary growth occurs in those plants which have closed vascular bundles. ! Cork is produced by intrafascicular cambium.

Last Answer : $ Secondary growth occurs in those plants which have closed vascular bundles. ! Cork is produced by ... D. If both As and R are wrong.

Description : In monocots showing secondary growth, the secondary vascular bundles are found embedded in

Last Answer : In monocots showing secondary growth, the secondary vascular bundles are found embedded in – Conjunctive tissue

Description : Why are the vascular bundles of dicots called open bundles? -Biology

Last Answer : answer: