Answer:
Ground Substance
Step-by-step explanation:
Ground substance is a complex matrix of various organic compounds such as a) Proteoglycans which are anionic and hydrophilic in nature
b) Glyco -proteins including fibronectin, laminin etc.
c) Glycosaminoglycans etc.
Ground substance matrix consists of lot of water with in its matrix components that allows it to exchange nutrients and waste (generated by metabolic processes) between the cell membrane and the blood.