NEETZoologyStructural Organisation in Animals
Read the following statements carefully: (A) Fibres provide strength, elasticity and flexibility to the connective tissue. (B) In all connective tissues except blood, the cells secrete fibres of structural proteins called collagen or elastin. (C) Macrophages secrete modified polysaccharides, which accumulate between cells and fibres and act as matrix. (D) Adipose tissue is a type of dense connective tissue located ma
Options
- AFour
- BThree
- CTwo
- DOne
Correct answer
C. Two
Step-by-step solution
Statement (A) is correct. The fibres of structural proteins (collagen or elastin) provide strength, elasticity and flexibility to the tissue. Statement (B) is correct. Blood is the only connective tissue where cells do not secrete fibres. Statement (C) is incorrect. The cells that secrete fibres (such as fibroblasts) also secrete modified polysaccharides which act as the matrix (ground substance). Macrophages are primarily phagocytic cells, not the primary matrix-secreting cells. Statement (D) is incorrect. Adipose