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Growth rings are formed due to activity ...

Growth rings are formed due to activity of

A

Intrastelar cambium

B

Intercalary Cambium

C

Extrastelar cambium

D

Primary cambium

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The correct Answer is:
A
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ALLEN-STRUCTURAL ORGANISATION IN PLANTS (MOPRHOLOGY OF FLOWERING PLANTS & ANATOMY OF FLOWERING PLANTS)-Exercise-I (Primary Internal Structure to Secondary Growth)
  1. In trees, the annual rings represent

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  2. Annual rings are the bands of

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  3. Growth rings are formed due to activity of

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  4. As a tree grows older, which of the following increases more rapidly i...

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  5. lenticels do not occur on

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  6. External protective tissues of plants or dicot stem are

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  7. Which of the following provide maximum mechanical strength to a tree t...

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  8. In a mature dicot stem which has undergone seconday growth, youngest l...

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  9. Extra stelar secondary growth occurs due to the activity of

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  10. Living tissue in lenticel is called

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  11. Normally secondary growth takes place in -

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  12. Select true statements :- (a) Lenticels are absent in woody climbers...

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  13. Formation of which tissue is example of dedifferentation

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  14. What happens to primary phloem in stem after secondary growth? (a) Com...

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  15. Which tissue remains more active during autumn

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  16. Water conduction in stem of tree takes place mainly by -

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  17. How many types of cells are present in vascular cambium of dicot stem

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  18. Cork cambium is a

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  19. Normally in dicot stems, phellogen develops from

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  20. Suberin in chiefly deposited in the cells of

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