Which among the following is responsible for cementing action to keep adjacent cells together ?

(1) Cell junctions

(2) Adhering junctions

(3) Communication junctions

(4) Gap junctions

Subtopic:  Glandular Epithelium & Cell Junction |
 91%
From NCERT
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Which epithelium is present in inner lining of ducts of salivary glands and of pancreatic ducts ?

(1) Ciliated epithelium

(2) Compound epithelium

(3) Columnar epithelium

(4) Squamous epithelium

Subtopic:  Compound & Specialised Epithelium |
 71%
From NCERT
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Which among the following difference is incorrect between bone and cartilage ?

Option  

Bone

Cartilage

1.

Hard and pliable

Solid and non-pliable

2.

Composed of osteocytes

Composed of chondrocytes

3.

Present in spaces called as lacunae

Enclosed in small cavities within matrix secreted by them

4.

In adults, bone > cartilage

In vertebrate embryo, cartilage > bone

Subtopic:  Connective Tissue |
 73%
From NCERT
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Complete the following analogy regarding reproductive system of cockroach :-

Testes : IV-VI abdominal segments : : Ovaries : ____ abdominal segments

(1) II-VI

(2) III-VI

(3) II-VIII

(4) IV-VI

Subtopic:  Cockroach: Female Reproductive System (OLD NCERT) |
 81%
From NCERT
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Complete the following analogy :-

Vertebrates : Brain : : Cockroach : ___________

(1) Lower-oesophageal ganglion

(2) Supra-oesophageal ganglion

(3) Nephrocytes

(4) Ommatidia

Subtopic:  Cockroach: Nervous System (OLD NCERT) |
 91%
From NCERT
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The hard chitinous exoskeleton of cockroach has sclerites which are called as:

Options  

Dorsally

Ventrally

(1)

sternites

tergites

(2)

Arthrodial membrane   

pleura

(3)

tergites

sternites

(4)

pleura

sternum

Subtopic:  Cockroach: Intro & External Morphology (OLD NCERT) |
 82%
From NCERT
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The triangular head of cockroach is made by fusion of how many segments :

(1) Three

(2) Five

(3) Nine

(4) Six

Subtopic:  Cockroach: Head & Mouth Parts (OLD NCERT) |
 81%
From NCERT
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Label A, B, C, D and E in the following figure :-

(1) Labium, mandible, hypopharynx, maxilla, labrum

(2) Labrum, hypopharynx, maxilla, mandible, labium

(3) Labrum, mandible, hypopharynx, maxilla, labium

(4) Labium, maxilla, hypopharynx, labium, mandible

Subtopic:  Cockroach: Head & Mouth Parts (OLD NCERT) |
 75%
From NCERT
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Which mouth part of cockroach has grinding and incising part ?

(1) Mandible

(2) Labium

(3) Mandible and maxilla

(4) Hypopharynx

Subtopic:  Cockroach: Head & Mouth Parts (OLD NCERT) |
 59%
From NCERT
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Which among the following statements with respect to forewings of cockroach is incorrect?

(1) They are called as tegmina.

(2) They are opaque, leathery and dark.

(3) They arise from prothorax.

(4) They cover hindwings when at rest.

Subtopic:  Cockroach: Structure of Thorax (OLD NCERT) |
 83%
From NCERT
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