K1.i Describe normal nutritional requirements, including vitamins and trace elements. K1.ii Define basal metabolic rate and outline the factors that influence it. K1.iii Describe the cellular metabolism of fat, carbohydrate, and protein. K1.iv Outline aerobic and anaerobic metabolism. K1.v Outline the synthesis, role and metabolism of the following substances; K1.v.a lactate, K1.v.b ketones.