NEET Biology question
Consider the following statements (i)-(iii), each with one or two blanks. (i) Bones have a hard and non-pliable ground substance rich in (1) and (2) which give bone its strength. (ii) Some of the columnar or cuboidal cells get specialised for secretion and are called (3) epithelium. (iii) (4) junctions help to stop substances from leaking across a tissue. Which one of the following options gives the correct fill ups?
Answer: (A)
Solution
Bone's hard ground substance is rich in calcium salts and collagen fibres (1, 2). Columnar or cuboidal cells specialised for secretion are termed glandular epithelium (3). Tight junctions (4)
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