Final answer:
B vitamins serve as coenzymes, can be lost during food processing, and are not stored in adipose tissue.
Step-by-step explanation:
B vitamins serve as coenzymes, meaning they are required for the proper functioning of enzymes involved in various metabolic reactions in the body. They play a crucial role in energy metabolism. Examples of B vitamins include thiamine (B1), riboflavin (B2), niacin (B3), pyridoxine (B6), and cobalamin (B12).
B vitamins can be lost during food processing and preparation. They are sensitive to heat, light, and air. Therefore, it is important to handle and cook food properly to retain their nutritional value.
Unlike fat-soluble vitamins, B vitamins are water-soluble and not stored in adipose tissue. They are constantly excreted through urine, and therefore, need to be replenished regularly through the diet.
In summary, the correct answer is option 3) B vitamins are not stored in adipose tissue.