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Junctions, help to stop substances from ...

Junctions, help to stop substances from leaking across a tissue :

A

Desmosomes

B

Gap junction

C

Interdigitation

D

Tight junction

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The correct Answer is:
D
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Consider the following statements (i) - (iii), each with one or two blanks (i) Bones have a hard and non-pliable ground substance rich in ul(1) and ul(2) which give bone its strength (ii) Some of the columnar or cuboidal cells get speciallised for secretion and are called ul(3) epithelium (iii) ul(4) junctions help to stop substances form leaking across a tissue Which one of the following options, gives the correct fills ups for the respective blanks from (1) to (4) in the statements ?

Read the following statements and choose the correct answer. (i) Gap junctions cement adjacent cells together. (ii) Areolar tissue contains fibroblasts , macrophages and mast cells. (iii) Tight junctions facilitate the cells to communicate with each other (iv) Adhering junctions help to stop substances from leaking across tissues (v) Cells of connective tissue except blood secrete fibres of structural proteins called elastin.

______ help to stop substances from leaking across a tissue.Choose the option which files the blank correctly.

Match the columns I and II, and choose the correct combination from the options given. {:(Column I, Column II),(a."Adhering",1."Help of stop substances from leaking across a tissue"),(b."Gap Junctions",2."Perform comenting to keep neighbouring cells together"),(c."Tight Junctions",3."Facilitate the cells to communicate with each other"):}

Consider the following three statements (A - C) and choose the correct option tow fill the blanks :- (A) .....helps to stop substance from leaking cross a tissue . (B) In all connective tissue except, ....the cells secrete fibres . (C) ..... cell produce and secrete fibrea in connective tissue

Which of the following statements about cell junctions are correct ? (i) All the cells of the epithelium are held together with little intercellular materials (ii) In almost all animal tissues specialised junctions provide both structural and functional link between their individual cells (iii) Tight junctions prevent substances from leaking across a tissue (iv) Adhering junctions provide cementing to keep neighbouring cells together (v) Gap junction provide cytoplasmic channels between cells for passage of ions, small molecules and sometimes big molecules.

Which of the following cell junction is the least permeable and prevents leakage across a tissue ?

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