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Question (11)

QN007799

Annual rings in trees are formed mainly due to activity of:

(A) Intercalary meristem
(B) Apical meristem
(C) Lateral meristem
(D) Epidermis

Correct Answer: C

Explanation:

Lateral meristem forms annual rings.

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Question (12)

QN007800

A 25-year-old teak tree will approximately show how many annual rings?

(A) 5
(B) 15
(C) 20
(D) 25

Correct Answer: D

Explanation:

One annual ring forms each year.

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Question (13)

QN007801

If the diameter of a teak tree is 32 cm, its age is approximately:

(A) 10 years
(B) 20 years
(C) 30 years
(D) 40 years

Correct Answer: C

Explanation:

From the given table, 32 cm corresponds to 30 years.

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Question (14)

QN007802

Grass regrows after grazing because of the presence of:

(A) Lateral meristem
(B) Epidermis
(C) Intercalary meristem
(D) Phloem

Correct Answer: C

Explanation:

Intercalary meristem helps regeneration.

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Question (15)

QN007803

Intercalary meristem is generally located:

(A) At root tip only
(B) At base of internodes
(C) Inside xylem
(D) In stomata

Correct Answer: B

Explanation:

It occurs near nodes and internodes.

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Question (16)

QN007804

Which characteristic is absent in meristematic cells?

(A) Dense cytoplasm
(B) Thin cell wall
(C) Prominent nucleus
(D) Large vacuole

Correct Answer: D

Explanation:

Meristematic cells generally lack vacuoles.

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Question (17)

QN007805

Meristematic tissue becomes permanent tissue through:

(A) Germination
(B) Photosynthesis
(C) Differentiation
(D) Respiration

Correct Answer: C

Explanation:

Differentiation produces specialised tissues.

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Question (18)

QN007806

Which tissue forms the outermost protective covering of plants?

(A) Xylem
(B) Epidermis
(C) Collenchyma
(D) Phloem

Correct Answer: B

Explanation:

Epidermis protects plant body.

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Question (19)

QN007807

Thick cuticle is especially advantageous in desert plants because it:

(A) Increases photosynthesis
(B) Enhances transpiration
(C) Reduces water loss
(D) Increases flexibility

Correct Answer: C

Explanation:

Thick cuticle prevents excessive transpiration.

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Question (20)

QN007808

Root hairs help mainly in:

(A) Photosynthesis
(B) Absorption of water and minerals
(C) Food transport
(D) Mechanical support

Correct Answer: B

Explanation:

Root hairs increase surface area for absorption.

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Question (11)

Annual rings in trees are formed mainly due to activity of:

Explanation:

Link:

Question (12)

A 25-year-old teak tree will approximately show how many annual rings?

Explanation:

Link:

Question (13)

If the diameter of a teak tree is 32 cm, its age is approximately:

Explanation:

Link:

Question (14)

Grass regrows after grazing because of the presence of:

Explanation:

Link:

Question (15)

Intercalary meristem is generally located:

Explanation:

Link:

Question (16)

Which characteristic is absent in meristematic cells?

Explanation:

Link:

Question (17)

Meristematic tissue becomes permanent tissue through:

Explanation:

Link:

Question (18)

Which tissue forms the outermost protective covering of plants?

Explanation:

Link:

Question (19)

Thick cuticle is especially advantageous in desert plants because it:

Explanation:

Link:

Question (20)

Root hairs help mainly in:

Explanation:

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