Which characteristics influence the tensile strength of collagen? 1 the helical arrangement of collagen chains 2 the small R group of the amino acids in collagen 3 the insoluble character of collagen 4 the links between collagen molecules
- A1, 2, 3 and 4
- B1, 2 and 4 only
- C1 and 3 only
- D2, 3 and 4 only