The secretion of glands which pour them directly into fluid bathing gland without the aid of any duct is called as :

(1) Mucus

(2) Saliva

(3) Hormone

(4) Sebum

Subtopic:  Glandular Epithelium & Cell Junction |
 89%
From NCERT
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Epithelium consisting of more than one layer stacked one over the another is :

(1) Columnar

(2) Cuboidal

(3) Compound

(4) Both (1) and (3)

Subtopic:  Compound & Specialised Epithelium |
 86%
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Which of the following statement is incorrect regarding the epithelium made of more than one layer of cells ?

(1) Cover moist surface of buccal cavity

(2) Lines inner surface of ducts of salivary glands

(3) They cover the dry surface of skin

(4) Their major role is secretion and absorption

Subtopic:  Compound & Specialised Epithelium |
 78%
From NCERT
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Which among the following is not the function of gap junction ?

(1) Rapid transfer of ions.

(2) To stop leakage across a tissue.

(3) Connects cytoplasm of adjacent cells.

(4) Facilitate communication between adjacent cells.

Subtopic:  Glandular Epithelium & Cell Junction |
 86%
From NCERT
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Functions of 1, 2, 3, 4 and 5 respectively is:

 

Cell

 

Function

1   

Squamous epithelium 

I

Help to stop substances from leaking across a tissue.

2

Cuboidal epithelium        

II

Move particles or mucus in a specific direction over the epithelium.

3

Ciliated epithelium

III   

Allow rapid transfer of ions, small molecules and sometimes big molecules.

4

Tight junctions

IV

Perform function of cementing to keep neighbouring cells together.

5

Adhering junctions

V

They form diffusion boundary.

6

Gap junctions

VI

Secretion and absorption in glandular ducts and nephrons.

(1) I, II, V, III, IV, VI

(2) V, VI, II, I, IV, III

(3) II, VI, V, I, III, II

(4) VI, III, IV, II, I, V

Subtopic:  Simple Epithelium | Glandular Epithelium & Cell Junction |
 90%
From NCERT
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Which among the following is incorrect regarding connective tissue ?

(1) They are named so because they link and support other tissues of the body.

(2) They are most abundant tissue in the body of complex animals.

(3) Adipose tissue is a type of dense connective tissue.

(4) All connective tissues except blood secrete collagen or elastin.

Subtopic:  Connective Tissue |
 85%
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Which type of tissue cells secrete fibres of structural proteins called collagen or elastin ?

(1) Loose connective tissue

(2) All connective tissues

(3) Blood

(4) All connective tissues except blood

Subtopic:  Connective Tissue |
 88%
From NCERT
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Strength, elasticity and flexibility to tissues is provided by the fibres of :

(1) Elastin

(2) Adipose tissue

(3) Elastin and collagen

(4) Areolar tissue

Subtopic:  Connective Tissue |
 77%
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Modified polysaccharides in between cells which act as matrix are secreted by :

(1) Blood cells

(2) Elastin

(3) Mast cells of areolar tissue

(4) All connective tissues except blood

Subtopic:  Connective Tissue |
 73%
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Which of the following statement is incorrect regarding areolar tissue?

(1) It serves as a supporting framework for epithelium.

(2) The cells and fibres are loosely arranged in a semi-fluid ground substance.

(3) The collagen fibres are present in rows between many parallel bundles of fibres.

(4) Mast cells, fibroblasts and macrophages are its components.

Subtopic:  Connective Tissue |
 70%
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