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11th Standard English Medium Biology (Botany) Subject Secondary Growth Creative 2 Mark Questions with Solution Part - I updated Creative Questions

Published on: 13/05/2022

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Std: 11th Standard - Biology

chapter: - Creative Questions

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Questions:

Generic 2

5 x 2 = 10

What is the source of of turpentine?

Name the tissues present in the bark.

What is the importance of studying growth rings?

What is Dendrochronology?

Name the tissues that bring about secondary growth in dicots.

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Answers Key:

Generic 2

5 x 2 = 10

(i) It is a resin obtained from bark of conifers.
(ii) It is used as thinner for oil based paints and organic solvents.

Peridenri, Cortex, Primary Phloem and secondary Phloem.

(i) Age of wood can be calculated.
(ii) Radio carbon dating can be verified.
(iii) Provides evidence in forensic investigation.

(i) Each annual ring of a tree corresponds to one year's growth and on the basis of these rings, the age of a particular plant can easily be calculated.
(ii) The determination of the age of a tree by counting the annual rings is called dendrochronology.

Lateral meristems :
(i) Vascular cambium
(ii) Cork cambium