Q. No.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.
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
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.
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
Strength, elasticity and flexibility to tissues is provided by the fibres of :
(1) Elastin
(2) Adipose tissue
(3) Elastin and collagen
(4) Areolar tissue
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
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.
Storage of fats is done by which type of cell in our body?
(1) Loose connective tissue
(2) Dense irregular connective tissue
(3) Areolar tissue
(4) Dense regular connective tissue
Which among the following is not the function of adipose tissue ?
(1) Insulation of body
(2) Storing fats
(3) Dissolving fats
(4) Conversion of excess nutrients into fats
In which type of arrangement are rows of collagen fibres present with respect to other fibres in dense regular connective tissue ?
(1) Alternative
(2) Parallel
(3) Anti-parallel
(4) Regular
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