Secondary Growth - Tamil Nadu Board STD 11 BIO BOTANY Questions - Vidyadip

Question types

Secondary Growth question types

73 questions across 4 question groups — pick any mix to generate a BIO BOTANY paper with step-by-step answer keys.

73

Questions

4

Question groups

5

Question types

Choose the most appropriate answer from the given alternatives and write the option code and the corresponding answer.

[2 Mark Questions]

[3 Mark each]

[5 Mark each]

Sample Questions

Secondary Growth questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1Choose the most appropriate answer from the given alternatives and write the option code and the corresponding answer.1 Mark

Rubber is obtained from:

A
Bombax mori
✓
Hevea brasiliensis
C
Quercus suber
D
Morus rubra

Answer: B.

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Q 2Choose the most appropriate answer from the given alternatives and write the option code and the corresponding answer.1 Mark

Turpentine used as thinner of paints is obtained from:

A
Acacia Senegal
B
Vinca rosea
C
Hevea brasiliensis
✓
Pinus

Answer: D.

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Q 3Choose the most appropriate answer from the given alternatives and write the option code and the corresponding answer.1 Mark

Gum Arabic is obtained from:

A
Hevea brasiliensis
✓
Acacia Senegal
C
Pinus
D
Dilonix regia

Answer: B.

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Q 4Choose the most appropriate answer from the given alternatives and write the option code and the corresponding answer.1 Mark

The antimalarial compound quinine is, extracted from:

A
seeds of cinchona
✓
bark of cinchona
C
leaves of cinchona
D
flowers of cinchona

Answer: B.

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Q 5Choose the most appropriate answer from the given alternatives and write the option code and the corresponding answer.1 Mark

Lenticel is helpful in:

A
transportation of food
B
photosynthesis
✓
exchanges of gases and transpiration
D
transportation of water

Answer: C.

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Q 6[2 Mark Questions]2 Marks

what is periderm?

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Q 7[2 Mark Questions]2 Marks

What is the function of secondary phloem?

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Q 8[2 Mark Questions]2 Marks

Explain briefly phelloderm.

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Q 9[2 Mark Questions]2 Marks

What are the functions of lenticel?

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Q 10[2 Mark Questions]2 Marks

Define’bark’?

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Q 11[3 Mark each]3 Marks

Distinguish between Intrafascicular Interfascicular cambium.

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Q 12[3 Mark each]3 Marks

Mention the benefits of bark in a tree.

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Q 13[3 Mark each]3 Marks

Explain the term lenticel.

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Q 14[3 Mark each]3 Marks

Write briefly about Cork cambium.

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Q 15[3 Mark each]3 Marks

What are fossil resins? Explain with an example.

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Q 16[5 Mark each]5 Marks

Be friendly with your environment (Eco friendly) Why should not we use the natural products which are made by plant fibres like rope, fancy bags, mobile pouch, mat and gunny bags etc., instead of using plastics or nylon?

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Q 17[5 Mark each]5 Marks

Generally monocots do not have secondary growth, but palms and bamboos have woody stems. Find the reason.

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Q 18[5 Mark each]5 Marks

Draw the different stages of secondary growth in a dicot root and label the parts.

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Q 19[5 Mark each]5 Marks

Write down the economic importance of tree bark.

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Q 20[5 Mark each]5 Marks

Distinguish between Phellem and Phelloderm.

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