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
Which metabolite is involved in glycolysis, HMP shunt pathway as well as gluconeogenesis 
Select and explain. 
A. Glucose - 1 - phosphate, B. Glucose -6- phosphate, C. Fructose - 6 - phosphate, D. Dyruvate
B: Glucose -6- phosphate
Answer: B: Glucose -6- phosphate 
Explanation: Conversion of glucose to glucose-6-phosphate is a method by which glucose is trapped inside the cell. later it is diverted to many different pathways depending upon enerygy state of the cell.