This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vitamins and Minerals, Subject name: Biochemistry
[{'content': 'IP3 facilitates which ion entry into cytoplasm? \nSelect and explain. \nA. Na+, B. K+, C. Ca++, D. Mg++', 'role': 'user'}, {'content': 'Answer: C \nExplanation: In the cells, Phosphatidyl inositol Pyrophosphate (PIP2) is present in membrane This PIP2 is broken into DAG and IP3 by the enzyme Phospholipase C IP3 being polar will go into cytoplasm and acts as the 2nd messenger Help in releasing calcium stores and increases Calcium levels in the cell.', 'role': 'assistant'}]