This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Medicine
Alkaline phosphatase is found in all organs, except- 
Select and explain. 
A. Bone, B. Hea, C. Placenta, D. Lungs
B: Hea
Answer: B: Hea 
Explanation: Alkaline phosphate is an enzyme orginating mainly in Bone, liver, placenta, kidney and intestines Alkaline phosphatase is used as an index of liver and bone disease Ref: harrison's internal medicine 20e