This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
Regarding synthesis of triacylglycerol in adipose tissue, all of the following are true, EXCEPT: 
Select and explain. 
A. Synthesis from Dihydroxyacetone phosphate, B. Enzyme Glycerol kinase plays an impoant role, C. Enzyme Glycerol 3 phosphate dehydrogenase plays an impoant role, D. Phosphatidate is hydrolyzed
B: Enzyme Glycerol kinase plays an impoant role
Answer: B: Enzyme Glycerol kinase plays an impoant role 
Explanation: Glycerol 3 phosphate may be derived from glycerol by action of Glycerol kinase or from glycolytic intermediate DHAP (Dihydroacetone phosphate) by the action of glycerol 3 phosphate dehydrogenase. The enzyme glycerol kinase is not expressed in adipose tissue and hence glycerol cannot be utilized for provision of glycerol 3 phosphate. Ref: Harper's Illustrated Biochemistry 27th/210, 211, 226; Introduction to Nutrition and Metabolism By David A. Bender, 1997, Page 145.