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Question (31)

QN007819

Sieve tubes are mainly responsible for:

(A) Water conduction
(B) Food transport
(C) Mechanical protection
(D) Photosynthesis

Correct Answer: B

Explanation:

Sieve tubes transport food in plants.

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Question (32)

QN007820

Companion cells mainly help in:

(A) Water storage
(B) Sugar loading and unloading in sieve tubes
(C) Formation of stomata
(D) Lignin deposition

Correct Answer: B

Explanation:

Companion cells regulate sieve tube functions.

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Question (33)

QN007821

Which tissue system forms the main body of the plant?

(A) Dermal tissue system
(B) Vascular tissue system
(C) Ground tissue system
(D) Nervous tissue system

Correct Answer: C

Explanation:

Ground tissue forms the bulk of plant body.

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Question (34)

QN007822

Which tissue system includes xylem and phloem?

(A) Dermal tissue system
(B) Ground tissue system
(C) Vascular tissue system
(D) Epidermal tissue system

Correct Answer: C

Explanation:

Vascular tissue system consists of xylem and phloem.

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Question (35)

QN007823

Which epithelial tissue is best suited for rapid gas exchange in lungs?

(A) Many-layered cuboidal epithelium
(B) Single-layered flat epithelium
(C) Thick stratified epithelium
(D) Ciliated columnar epithelium

Correct Answer: B

Explanation:

Thin flat cells allow quick diffusion.

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Question (36)

QN007824

Skin is protected from friction mainly because it contains:

(A) Thin epithelium
(B) Many layers of epithelial cells
(C) Air spaces
(D) Cilia

Correct Answer: B

Explanation:

Stratified epithelium protects against wear and tear.

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Question (37)

QN007825

Which epithelial tissue is specialised for absorption in small intestine?

(A) Stratified epithelium
(B) Squamous epithelium
(C) Tall pillar-like epithelial cells
(D) Cuboidal epithelium only

Correct Answer: C

Explanation:

Columnar epithelial cells aid absorption.

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Question (38)

QN007826

Which connective tissue has a fluid matrix?

(A) Bone
(B) Cartilage
(C) Blood
(D) Tendon

Correct Answer: C

Explanation:

Blood has a fluid matrix called plasma.

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Question (39)

QN007827

Red colour of blood is due to:

(A) Plasma
(B) WBCs
(C) Platelets
(D) Haemoglobin

Correct Answer: D

Explanation:

Haemoglobin is a red iron-containing pigment.

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Question (40)

QN007828

Platelets mainly help in:

(A) Oxygen transport
(B) Blood clotting
(C) Hormone transport
(D) Digestion

Correct Answer: B

Explanation:

Platelets help stop bleeding by clotting blood.

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Question (31)

Sieve tubes are mainly responsible for:

Explanation:

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Question (32)

Companion cells mainly help in:

Explanation:

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Question (33)

Which tissue system forms the main body of the plant?

Explanation:

Link:

Question (34)

Which tissue system includes xylem and phloem?

Explanation:

Link:

Question (35)

Which epithelial tissue is best suited for rapid gas exchange in lungs?

Explanation:

Link:

Question (36)

Skin is protected from friction mainly because it contains:

Explanation:

Link:

Question (37)

Which epithelial tissue is specialised for absorption in small intestine?

Explanation:

Link:

Question (38)

Which connective tissue has a fluid matrix?

Explanation:

Link:

Question (39)

Red colour of blood is due to:

Explanation:

Link:

Question (40)

Platelets mainly help in:

Explanation:

Link:

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