In flowering plants which of the following are main water transporting element

  1. Tracheids
  2. Vessels
  3. Both A and B
  4. None of the above
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Central cavity is found in

  1. Vessels
  2. Tracheids
  3. Both A and B
  4. None
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The presence of _________ is characteristic feature of angiosperms.

  1. Vessels
  2. Tracheids
  3. Tracheid pore
  4. Vessel pore
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Xylem parenchyma cells are made up of

A. Cellulose

B. Hemicellulose

C. Both A and B

D. None of the above

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Xylem parenchyma store food in the form of

A. Starch

B. Fat

C. Tannins

D. All of the above

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Plant tissues have been divided into meristematic and permanent tissue based on

(A)differentiation capability

(B) division capability

(C) symmetry

(D) plane of division

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Meristematic tissues are

(A) dividing and mature cells

(B) dividing and undifferentiated and mature cells

(C) dividing and undifferentiated tissues

(D) dividing and differentiated tissues

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Growth is always restricted  to  the specialised regions in plants because of the presence of

(A) meristems are present  in some regions only

(B) cell division takes place in some regions only

(C) differentiated cells are present  some regions only

(D) dividing cells in some regions only

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How many of the following statements are true for meristem-

  1. Intercellular spaces are absent
  2. Immature cells
  3. Only primary cell wall is present
  4. Metabolically high active
  5. Iso-diametric cells
  6. Totipotency is present

 

(A)6

(B)5

(C)4

(D)3

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Types of meristem on the basis of position or location in plants

(A)apical, intercalary, and lateral meristem

(B)primary and secondary meristem

(C) Pro-meristem, primary meristem, secondary meristem

(D) None of these

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