This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lipids, Subject name: Biochemistry
Krabbe's disease is caused by a defect of - 
Select and explain. 
A. Ceramidase, B. b galactosidase, C. a galactosidase, D. Galactosyl ceramidase
D: Galactosyl ceramidase
Answer: D: Galactosyl ceramidase 
Explanation: Ans. is 'd' i.e., Galactosyl ceramidaseLipid storage disordersDisorderEnzyme defectGaucher's diseaseb glucosidaseNiemann Pick diseaseSphingomyelinaseFabry's diseasea galactosidaseGM1 gangliosidosisb galactosidaseGM2 gangliosidosisHexosaminidase ASandhoff s diseaseHexosaminidase A and BKrabbe's diseaseGalactosyl ceramidaseMetachromatic leukodystrophyAryl Sulfatase AFarber's diseaseCeramidaseWolman's diseaseAcid lipase