Final answer:
Vitamin B1, known as Thiamine, is the nutrient that functions as a coenzyme necessary for producing energy from food. It is crucial in metabolism and converting nutrients into energy, unlike Vitamin B12, which is involved in various cellular processes but not primarily energy conversion. correct option is B.
Step-by-step explanation:
The correct answer to the question of which nutrient functions as a coenzyme necessary for energy production from food is d) Vitamin B1. Thiamine, also known as Vitamin B1, plays a crucial role in the metabolism by helping to convert nutrients into energy. Pantothenic acid (Vitamin B5) is another coenzyme that assists primarily in the production of energy from lipids.
- Vitamin B1 (Thiamine) is necessary for energy production from food.
- Vitamin B12 (Cobalamin) is also a coenzyme involved in various cellular processes but is not as directly associated with the conversion of food into energy as is Vitamin B1.
- Vitamin B5 (Pantothenic Acid) assists in the production of energy, particularly from fats.
Regarding other vitamins presented in the related questions:
Vitamin C is the water-soluble vitamin among the options given, and b) Vitamin B12 and c) folic acid are stored in the body to some extent, but largely, vitamins need to be regularly replenished through diet as they are not stored in large quantities.