what is the chemical composition of :matrix of mitochondria,stroma of chloroplasts,lysosomes and vacuoles.(EXPERTS NEEDED)
Mitochondrial matrix: It contains soluble enzymes and other organic molecules.
Stroma of chloroplast: A colourless watery substance which contains metabolic products, enzymes and ions.
Lysosomes: It contains acid hydrolase enzyme that breaks down waste products of cell.
Vacuoles: They are filled with water containing organic and inorganic molecules including several enzymes.