Description : 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.
Last Answer : (b) are capable of producing secondary xylem and phloem
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 : Where do the Casparian bands occur? (a) Epidermis (b) Endodermis (c) Pericycle (d) Phloem
Last Answer : (b) Endodermis
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 : 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 : Casparian strip occurs in a (a) endodermis (b) exodermis (c) pericycle (d) epidermis.
Last Answer : (a) 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 : Casparian strips are found in: (a) Periderm (b) Epidermis (c) Endodermis (d) Hypodermis
Last Answer : Ans. ((c))
Description : Casparian strips are found in (a) epidermis (b) hypodermis (c) periderm (d) endodermis.
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 : 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
Last Answer : c) lateral meristem
Description : Jute fibre is extracted from ? a Xylem b Parenchyma c Secondary phloem d Epidermal layer
Last Answer : c Secondary phloem
Description : Tracheids differ from other tracheary elements in (a) having Casparian strips (b) being imperforate (c) lacking nucleus (d) being lignified.
Last Answer : (b) being imperforate
Description : Tracheids differ from other tracheary elements in (a) having Casparian strips (b) being imperforate (c) lacking nucleus (d) being lignified
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 : The principal pathway of water translocation in angiosperms is (a) sieve cells (b) sieve tube elements (c) xylem vessel system (d) xylem and phloem
Last Answer : a) sieve cells
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 : Root Hairs arise from (1) Cortex (2) Pericycle (3) Epidermis (4) Endodermis
Last Answer : Epidermis
Description : What are casparian strips? -Biology
Last Answer : answer:
Description : Casparian strips functions -Biology
Description : Casparian strips are present in? -Biology
Description : Of what fatty substance are casparian strips composed? -Biology
Description : When many islands of phloem embedded in xylem layer due to anomalous activity of cambium are formed such phloems are known as
Last Answer : When many islands of phloem embedded in xylem layer due to anomalous activity of cambium are formed such phloems are known as – Included phloem
Description : Which tissue is responsible for the passage of water in plants? (a) Sclerenchyma (b) Xylem (c) Phloem (d) Collenchynatous cells
Description : The opening and closing of the stomatal pores is a function of the - (1) Guard cells (2) Chloroplast (3) Xylem (4) Phloem
Last Answer : (1) Guard cells Explanation: The opening and closing of the pores is a function of the guard cells. They swell when water flows into them, causing the stomatal pore to open and likewise, the pore closes if the guard cells shrink.
Description : Which of the following is made up of dead cells? (a) Collenchyma (b) Phellem (c) Phloem (d) Xylem parenchyma
Last Answer : (b) Phellem
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 : Which of the following is made up of dead cells? (1) Collenchyma (2) Phellem (3) Phloem (4) Xylem parenchyma
Last Answer : (2) Phellem
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 : Outermost layer of stele is -Biology
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 : Highest auxin concentration occurs (a) in growing tips (b) in leaves (c) at base of plant organs (d) in xylem and phloem
Last Answer : (a) in growing tips
Last Answer : Phloem
Description : Read the following four statements (A - D). (A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane. (B) In dicot stems, a new cambium ... Petunia are polyandrous. (D) Symbiotic nitrogen fixers occur in free-living state also in soil.
Last Answer : (A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane.
Description : The tissue that is involved in the transport of food material in plants is called: (a) parenchyma (b) phloem (c) sclerenchyma (d) xylem
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 : Why are xylem and phloem called vascular bundles?
Last Answer : Since xylem and phloem occur together they are called vascular bundles.
Description : Gymnosperms are also called soft wood spermatophytes because they lack (a) cambium (b) phloem fibres (c) thick-walled tracheids(d) xylem fibres
Last Answer : (d) xylem fibres.
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 : Gymnosperms are also called soft wood spermatophytes because they lack (1) Xylem fibres (2) Cambium (3) Phloem fibres (4) Thick-walled tracheids
Last Answer : (4) Thick-walled tracheids
Description : Presence of two layers of phloem, one above xylem and another below xylem is called as
Last Answer : Presence of two layers of phloem, one above xylem and another below xylem is called as – Bicollateral arrangement
Last Answer : collateral
Description : What are the differences between the transport of materials in xylem and phloem ? -Biology
Last Answer : Xylem Phloem 1. Xylem conducts water and dissolved minerals from roots to leaves and other parts. 1. Phloem conducts prepared food material from leaves to other parts of plant in dissolved ... increases the osmotic pressure that moves the material in the phloem to tissues which have less pressure
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 : What part of a leaf contains xylem and phloem?
Last Answer : Need answer
Description : What are the xylem and phloem of plants used for?
Last Answer : Xylem tissue is used mostly for transporting water from roots to stems and leaves but also transports other dissolved compounds. Phloem is responsible for transporting food produced from photosynthesis from leaves to non-photosynthesizing parts of a plant such as roots and stems.