Final answer:
High proteoglycan aggregates and high collagen levels in ECM result in optimal mechanical strength, excellent hydration and compression resistance, enhanced shock absorption, and robust structural support and flexibility.
Step-by-step explanation:
The extracellular matrix (ECM) is made up of collagens and proteoglycans, which contribute to several properties:
- Optimal mechanical strength: Collagen fibers provide tensile strength to the ECM, allowing it to withstand forces without breaking or deforming.
- Excellent hydration and compression resistance: Proteoglycans and glycosaminoglycans (GACs) occupy space within the ECM, forming a hydrated gel that resists compression and maintains the ECM's shape.
- Enhanced shock absorption: The high proteoglycan aggregates in the ECM act as sieves, absorbing and dissipating shock to protect the underlying tissues.
- Robust structural support and flexibility: Collagen fibers and proteoglycans work together to provide structural support to tissues while allowing flexibility for movement.