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NEET UG BIOLOGY MCQ: STRUCTURAL ORGANISATION IN ANIMALS
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What is true with regards to cell-cell junctions?
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Correct option: D
Sometimes gap junctions connect cytoplasm of
adjoining cells for rapid transfer of big molecules
adjoining cells for rapid transfer of big molecules
Option D (Sometimes gap junctions connect cytoplasm of adjoining cells for rapid transfer of big molecules) is correct because gap junctions facilitate direct communication between cells.
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i) Cardiac fibres are branched with one or more nuclei.
ii) Smooth muscles are unbranched and cylindrical.
iii) Striated muscles can be branched or unbranched.
iv) Involuntary muscles are non-striated. The ciliated columnar epithelial cells in humans are known to occur in The outermost wall of spermatophore of cockroach is composed of the secretions of