Collagen is best described as a n
A)intracellular matrix protein.
B)extracellular matrix protein and one of the earliest innovations observed in animals.
C)matrix protein that all animals have,with the exception of sponges.
D)intracellular matrix that is a basis for communication between cells.

Question

Quizplus · Accepted Answer

Collagen is an extracellular matrix protein and one of the earliest innovations observed in animals. It is found in all multicellular animals, including sponges, but not in unicellular organisms or prokaryotes. It provides structural support to cells and tissues, and is a major component of connective tissues, such as cartilage, bone, skin, and tendons. Collagen plays an essential role in many physiological processes, including tissue repair, wound healing, and cell migration.

Collagen Is Best Described as a N