ACE Health Coach Certification Practice Test

Which vitamin aids cell development, functioning of the nervous system, and the metabolism of protein and fat?

1. Vitamin B12

2. Vitamin K

3. Choline

4. Thiamin

The correct answer is: Vitamin B12

Vitamin B12 plays a crucial role in various bodily functions, particularly in cell development and the functioning of the nervous system. It is essential for the formation of red blood cells and DNA synthesis, which are vital for healthy cell development. Additionally, Vitamin B12 is involved in the metabolism of proteins and fats, helping the body utilize these macronutrients efficiently. Moreover, Vitamin B12 helps maintain the health of nerve cells and is integral to producing myelin, a protective sheath that surrounds nerves. Without adequate levels of Vitamin B12, individuals may experience neurological issues and other health problems due to impaired cell functioning. In contrast, while other vitamins listed have important functions, they do not encompass the same range of roles as Vitamin B12. Vitamin K primarily aids in blood clotting, Choline is significant for liver function and neurological development, and Thiamin (Vitamin B1) is important for energy metabolism but does not directly support the extensive functions of the nervous system or cell development to the same degree as Vitamin B12. Therefore, Vitamin B12 is the most comprehensive answer for this question.