Anatomy of Flowering Plants Mock Test | NEET Botany Test Series Leave a Comment / Blog / By admin Anatomy of Flowering Plants- NEET (BOTANY) Best of Luck 1 / 50 Secondary xylem in dicot stem is formed due to Redifferentiation of vascular cambium Dedifferentiation of fusiform initial Dedifferentiation of ray initial Redifferentiation of cork cambium 2 / 50 Which of the following option is incorrect regarding heartwood ? Lighter in colour Hard and durable Resistant to microorganism and insects Deposition of organic compounds 3 / 50 Which of the following is secondary meristematic tissue present in a bark? Cork Cork cambium Pericycle Secondary Phloem 4 / 50 Secondary growth in dicot root differ from secondary growth in dicot stem in Being confined in stelar zone only Forming circular cambium ring initially No contribution of pericycle Formation of wave like vascular cambium in extra stelar region 5 / 50 Dendrochronology is technique to study Age of a dicot plant Age of a moncot plant Age of all angiospermic plants Transpiration rate in plant 6 / 50 Which one of the following pairs is suitable for study of secondary growth ? Wheat and Dryopteris Sugarcane and rice Teak and fern Teak and pine 7 / 50 One annual ring includes One circle of spring wood only One circle of autumn wood only One circle of autumn wood and one circle of spring wood Total amount of xylem and phloem produced in a year 8 / 50 Lenticels are present in Secondary xylem Secondary phloem Pericycle Periderm 9 / 50 Secondary medullary rays are Sclerenchyma Collenchyma Both (1) and (2) Parenchyma 10 / 50 Pericycle in dicot stem Is present below the endodermis and above the phloem Plays an important role during secondary growth Is found as semi-lunar patches of sclerenchyma Both (1) & (3) 11 / 50 Phloem parenchyma is absent in All dicots Few dicots and few monocots All dicots and some monocots Most of the monocots 12 / 50 Companion cells help in Providing support Maintaining the pressure gradient in sieve tube Water conduction only Conduction of food from sink to source 13 / 50 Tracheids act as main conducting elements in Pteridophytes Gymnosperms Angiosperms Both (1) and (2) 14 / 50 Find the odd one with respect to tissue formed as a result of secondary growth in extra stelar region Phellem Phellogen Vascular rays Phelloderm 15 / 50 Stele include Endodermis, pericycle, vascular bundles and pith Pericycle, vascular bundles and pith (which may be present or absent) Vascular bundles and pith Endodermis and pith 16 / 50 Pith is well developed in Monocot root and monocot stem Dicot root and dicot stem Monocot root and dicot stem Dicot root and monocot stem 17 / 50 Which one is not a product of redifferentiation? Cork Parenchyma in pith Secondary phloem Secondary cortex 18 / 50 Which one is not a feature of trichomes? Secretion Branched Always single celled Check transpiration 19 / 50 The endodermis of dicot stem differs from that of root in having Casparian strips Suberin deposition Stored starch grains Passage cells 20 / 50 Choose the correct option with respect to vascular bundle of leaf Vascular bundle are conjoint and open Vascular bundle are conjoint and closed Vascular bundle are radial Phloem always present towards adaxial surface 21 / 50 Choose the correct option with respect to activity of stelar cambium in dicot stem Equally active in both sides More active in inner side than outside More active in outer side than inner side Active only during spring season 22 / 50 Sclereids are present in Pulp of guava Leaves of tea Fruitwall of walnut All of these 23 / 50 Dendrochronology deals with Counting the age of tree Annual rings seen in a cut stem and root The region in which the tree was grown Extraction of secondary phlocon from tree 24 / 50 Which is not correct about the annual ring formation ? Acitivity of cambial ring is not uniform throughout the year but affected by external environment Cambium is very active in winter while less active in spring Autumn wood or late wood have narrow lumens Autumn wood is more dense than spring wood 25 / 50 The oldest layer of secondary xylem formed will be Near the vascular cambium ring on its outer face Near the vascular cambium ring on its inner face Near the innermost layer of primary xyle Near the outermost layer of primary xylem 26 / 50 Endarch vascular bundle refers to Protoxylem facing the pericycle Protoxylem facing the pith Protoxylem and metaxylem are mixed Protoxylem completely surrounding metaxylem 27 / 50 Bark does not contain Secondary phloem Periderm Stelar cambium Primary phloem 28 / 50 Large conspicuous nucleus, absence of intercellular spaces, small or no vacuoles are some features associated with Parenchyma Meristematic cells Angular collenchyma Chlorenchyma 29 / 50 conjunctive tissue is a characteristic feature of Stem Leaf Root Rachis 30 / 50 As a tree grows and develops a thick stout stem after secondary growth, the amount of Both sap wood and heart wood lncreases sap wood increases Heart wood Increases Both wood types remain constant 31 / 50 Pericycle is an important layer and perform various functions except, forming A part of cambium in dicot ste A part of cork cambium in roots A part of vascular cambium in dicot root Site of origin for lateral root 32 / 50 Which one is incorrect for tracheal plugs found in the heart wood? Balloon like swelling Called tyloses Formed by xylem parenchym Helps in water absorption 33 / 50 The gritty texture of some fruits like pear and guava is due to the presence of in their pulp Sclereids Parenchyma Collenchyma Secondary meristem 34 / 50 The cambium is generally ___ on the ___ than on the outer side and as a result, the amount of ___ produced is more than ___ More active; inner side; secondary xylem, secondary phloem Less active; inner side; secondary phloem, secondary xylem More active; lateral side; secondary phloem, secondary xylem Less active; lateral side; secondary xylem, secondary phloe 35 / 50 Porlcycle Is semilunar In shape and comprise of sclerenchymatous cells In Monocot stem Monocot root Dicot stem Dicot root 36 / 50 Water-containing cavities (schizolysigenous in origin) is found in the vascular bundle of Monocot leaf Monocot stem Dicot leaf Dicot stem 37 / 50 Which one is incorrect with respect to monocot leaf? Both layers of epidermis are cuticularized Mesophyll is not differentiated into palisade parenchyma and spongy parenchym Nearly similar type of vascular bundles are seen due to parallel venation In the vascular bundle, xylem is situated towards lower epidermis and phloem towards upper epidermis 38 / 50 Which of the following is not true with respect to pericycle: Thick walled pericycle provides mechanical support to the plants Parenchymatous pericycle may store food materials In dicot roots, it dedifferentiate to form cambial ring In monocotyledonous stem pericycle is many layered 39 / 50 The dumb-bell shaped guard cells in monocots have: Thin outer wall Highly thickened inner wall Thickening is limited to the middle part Both(1)and(2) 40 / 50 Which one Is not truo about the monocot stem? Hypodermis is sclerenchymatous Phloem parenchyma Is generally present Vascular bundle is conjoint and closed Ground tissue is undifferentiated 41 / 50 The main function of lenticel is: Transpiration Gaseous exchange Both (1) and (2) Guttation 42 / 50 Which of the following statement is true? Tracheids are unicellular and with different pattern of lignin thickening on outer wall Vessels are multicellular and with wide lume Vessels are multicellular and without lumen Tracheids are multicellular and with narrow lumen 43 / 50 In a dicotyledonous stem, the sequence of tissues from the outside to the inside is Phellem pericycle endodermis phloem Pericycle phellem endodermis phloem Phellem phloem endodermis pericycle Phellem endodermis pericycle 44 / 50 Mark the incorrect statement from the following : Vascular bundles of dicot plant possess fascicular cambium In young stem, cambium is present as single layer of cells between xylem and phloem During secondary growth the intrafasicular cambium forms a ring with the help of interfascicular cambium lnterfascicular cambium originates from primary phloem 45 / 50 Secondary growth occurs in Stem of gymnosperms Roots of gymnosperms Roots of monocots Both (1) and (2) 46 / 50 In grasses, some cells in the upper epidermis become large, empty and colourless. They are called ___ which occur in groups and help in ___ during ___. Bulliform cells; rolling of leaves; water stress Bulliform cells; curling of leaves; rain Guard cells; gaseous exchange; respiration Subsidiary cells; water balance; drought 47 / 50 Cuticle is absent in epiblema of ___ and ___. Mesophytes and xerophytes Root and hydrophytes Stem and hydrophytes Leaf lower surface and mesophytes 48 / 50 A stomata apparatus consists of all of the following, except: The stomata! aperture (pore) Two guard cells Surrounding accessory cells Epidermal cells surrounding accessory cells 49 / 50 Choose incorrect statement with respect to trichome: Is always unicellular May be branched or unbranched May be secretory Both (1) and (3) 50 / 50 Which of the following is not the secondary meristem? Cork cambium lnterfascicular cambium wound cambium lntrafascicular cambium Your score isThe average score is 24% 0% Restart quiz