This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of carbohydrate, Subject name: Biochemistry
In Lysosomal storage disorders, true is 
Select and explain. 
A. The lyososomes are deficient in the enzyme hydrolase, B. There is a defect in the fusion of lysosomes and phagosomes, C. There is a defect in the lysosomal membrane, D. There is increased degradation of heteroglycans
A: The lyososomes are deficient in the enzyme hydrolase
Answer: A: The lyososomes are deficient in the enzyme hydrolase 
Explanation: Lysosomal storage diseases (LSDs); are a group of approximately 50 rare inherited metabolic disorders that result from defects in lysosomal function. Lysosomes are sacs of enzymes within cells that digest large molecules and pass the fragments on to other pas of the cell for recycling. This process requires several critical enzymes. If one of these enzymes is defective, because of a mutation, the large molecules accumulate within the cell, eventually killing it.