Question

collagen fibres are not found in extracellular matrix of

a) bone
b) adipose tissue
c) blood
d) areolar connective tissue

Answer 1

Answer:

Collagen is a major abundant fibrous protein in the extracellular matrix. Collagens, which constitute the primary structural element of the ECM, provide tensile strength, regulate cell adhesion, support chemotaxis and migration, and direct tissue development

Answer 2

Collagen fibres are not found in extracellular matrix of blood. (option c)

• Collagen is the most commonly found protein in our body. It makes up the extracellular matrix (ECM) of most connective tissues and gives structural support.
• It forms the important ECM of bones, adipose tissues and areolar tissues. It acts as a scaffolding for the cells of the tissues and also has receptors for many important biochemical reactions.
• Blood contains a liquid ECM, that is mainly composed of water. This is unique among the connective tissues. The lack of collagen makes blood to easily flow through narrow vessels.