Answer:
a. Acetyl CoA
Explanation:
Acetyl-CoA is produced in the mitochondria by the process of oxidative decarboxylation of pyruvate and β-oxidation of the fatty acids.
However, <u>both acetyl CoA and Oxaloacetate cannot cross mitochondrial membrane.</u> But the two join together to form citrate and thus, citrate can cross the mitochondrial membrane.
The difference between it and hyaline is that fibrous cartilage has a much denser matrix which contains far fewer chondrocytes and thicker collagen fibres. The main function of fibrocartilage is to serve as a shock absorber for structures where excessive pressures are generated.
