Siuins are associated with: (A) Memory, (B) Vision, (C) Metabolism, (D) Olfaction
Answer is C. Siuins are a family of proteins that play a role in aging by regulating cellular health. They're responsible for critical biological functions like DNA expression and aspects of aging. However, siuins can only function in the presence of NAD+, nicotinamide adenine dinucleotide, a coenzyme found in all living cells Ref: guyton and hall textbook of medical physiology 12 edition page number:534,535,536