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
[{'content': 'Force not acting in an enzyme substrate complex: \nSelect and explain. \nA. Electrostatic, B. Covalent, C. Van der waals, D. Hydrogen', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Van der waals force are very weak. So not involved in the formation of enzyme substrate complex. Ref: A Textbook of Science for The Health Professions By Barry G ; Evaluation of Enzyme Inhibitors in Drug Discovery: A Guide for Medicinal Chemists and Pharmacologists By Robe Allen Copeland, Page 23 ; Textbook of Biochemistry By Thomas M.Devlin, 4th Edition, Page 156', 'role': 'assistant'}]