Cartilage is a tough tissue that contains a protein called collagen.
Cartilage cells are called chondrocytes in mature cartilage.
Chondrocytes contain a protein called collagen.
Chondrocytes contain which type of protein?

1: Actin
2: Keratin
3: white
4: allow growth
5: Collagen
6: ligt
7: positive
8: Hemoglobin