Root hairs are ____________ and formed from __________zone of root.

(A)unicellular, maturation

(B)multicellular, elongation

(C)multicellular, maturation

(D) unicellular, elongation

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Epidermis of root is also known as

(A)epiblema

(B)piliferous layer

(C) Rhizodermis

(D) All of the above 

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Cortex consists of

(A) parenchymal cells with intracellular spaces

(B)parenchymal cells with intercellular spaces

(C)collenchymal cells with intracellular spaces

(D)collenchymal cells with intercellular spaces

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The innermost layer of the cortex is called

(A)pericycle

(B) endodermis

(C) vascular bundle

(D) epidermis

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Endodermis  comprises of  ____________layer of ____________shaped cells.

(A)single, oval

(B)single, barrel

(C) multi, round

(D) single, round

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Casparian strips are present in

(A)endodermis

(B)epidermis

(C) pericycle

(D) cortex

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Casparian strips are barrel shaped cells in which tangential and radial walls are impermeableto water because of

(A)suberin deposition

(B)cellulose deposition

(C) cutin deposition

(D) casparin deposition

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Lateral roots originate from

(A)Pericycle

(B)Epidermis

(C) cortex

(D) hypodermi

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In dicot roots, pericycle is__________ and __________walled.

(A)either unilayered or multilayered,thick

(B)always multilayered,thick

(C) always unilayered ,thick

(D) either unilayered or multilayered,thin

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The parenchymatous cells which lie between the xylem and phloem are called

(A) Complementry cells

(B) Conjuctive cells

(C) pith

(D) cortex

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