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In quiescent centre cells are active....

In quiescent centre cells are active.

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### Step-by-Step Solution: 1. **Understanding Quiescent Centers**: - Quiescent centers are specific regions located in the root tips of plants. They are situated between the root cap and the actively dividing meristematic tissues. 2. **Function of Quiescent Centers**: - These centers serve as a protective environment for the cells. They are not actively dividing but are crucial for the overall growth and development of the root. 3. **Characteristics of Cells in Quiescent Centers**: - The cells in quiescent centers exhibit low levels of DNA, RNA, and protein synthesis. This indicates that they are not actively engaged in metabolic processes typical of dividing cells. 4. **Role as Reservoirs**: - Quiescent centers act as reservoirs of relatively resistant cells. These cells are maintained in a dormant state until they are needed for growth or repair. 5. **Conclusion**: - Since the cells in quiescent centers are not actively dividing or metabolically active, the statement "In quiescent centre cells are active" is false. The cells are actually inactive and serve as a reserve for future cell production.

### Step-by-Step Solution: 1. **Understanding Quiescent Centers**: - Quiescent centers are specific regions located in the root tips of plants. They are situated between the root cap and the actively dividing meristematic tissues. 2. **Function of Quiescent Centers**: - These centers serve as a protective environment for the cells. They are not actively dividing but are crucial for the overall growth and development of the root. ...
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Assertion The quiescentcentre actsas a reservoir of relatively resistant cells, which constitute a permanent source of active initials. Reason The cells of the inactive region of quiescent centre become active,when the previous active initials get damaged.

The cells of the quiescent centre are characterised by

Cells of quescent centre are characterized by

Quiescent centre is found in

Quiescent centre is the zone of

(A) What is the function of velamen ? (B) What is plerome ? (C) What is quiescent centre ? (D) What is the function of collenchyma ? (E) What is the chemical nature of cuticle ?

MODERN PUBLICATION-ANATOMY OF FLOWERING PLANTS -QUICK MEMORY TEST (A. Say True or False) ( Write "True" or "False".)
  1. In Aristolochia anomalous secondary growth is present

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  2. If a sign was nailed in the trunk of the tree six feet above the groun...

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  3. In quiescent centre cells are active.

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  4. Root cap is formed from calyptrogen in monocots.

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  5. Intercalary meristem is present at tip of branches.

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  6. In stem branches arise endogenously.

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  7. Shoot apex changes its activity in reproductive phase.

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  8. Parenchyma is complex permanent tissue.

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  9. Sclerenchyma is a simple supportive tissue of highly thick walled cell...

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  10. In conjoint vascular bundles, xylem and pholem are present separetely.

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  11. Root hair are multicellular.

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  12. Mesophyll is differentiated into palisade and spongy parenchyma in ada...

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  13. In bicollateral vascular bundles, phloem and cambium are present on on...

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  14. In closed vascular bundle, cambium is present.

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  15. Sap wood is meant for conduction of sap.

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  16. Casparian strips are present in the pericycle.

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  17. Pith is present in monocot root.

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  18. Stoma is surrounded by kidney shaped guard cells in monocots.

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  19. Lysigenous cavity is present in monocot stem.

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  20. Age of a tree can be known by counting its annual rings.

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