system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Which of the following fat soluble vitamin has been  identified to function as a coenzyme?
assistant
The correct answer is  Most of the water soluble vitamins exert the functions through their respective coenzymes while only one fat soluble vitamin (K) has been identified to function as a coenzyme.
Reference: Satyanarayana- Biochemistry, 3rd edition, pg-117