Question
Biology Question on The Tissue System
In which of the following connective tissues, the cells secrete fibres of collagen or elastin?
A. Cartilage
B. Done
C. Adipose tissue
D. Blood;E. Areolar tissue
Choose the most appropriate answer from the options given below :
D, C, D and E only
A, D, C and E only
B, C and D only
A, C and D only
A, D, C and E only
Solution
Fibroblasts are the primary cells responsible for secreting collagen and elastin fibers in connective tissues.
Cartilage, Bone, Adipose tissue, and Areolar tissue: All contain fibroblasts or related cell types (chondrocytes in cartilage, osteoblasts in bone, adipocytes in adipose tissue) that produce collagen or elastin fibers.
Blood: Blood does not contain fibroblasts. Its matrix (plasma) contains various proteins , but these are not secreted by blood cells in the same way that fibroblasts secrete collagen and elastin.