1. Which of the following vitamins can be synthesized by the human body?

Vitamin E

Vitamin C

Vitamin K

Vitamin B₁₂

2.Which of the following is NOT one of the four fat soluble vitamins?

Vitamin C

Vitamin D

Vitamin K

Vitamin A

3. Which of the B vitamins are intricately involved in the breakdown and processing of proteins?

Vitamin B₁ and Vitamin B₂

Vitamin B₂ and Vitamin B₅

Vitamin B₂ and Vitamin B₃

Vitamin B₅ and Vitamin B₆

4.Which of the fat-soluble vitamins is needed for vision, tissue repair, and fetal development?

Vitamin A

Vitamin D

Vitamin E

Vitamin K

5.Which of the fat-soluble vitamins is needed for building bone, muscle contraction, and nerve impulse transmission?

Vitamin A

Vitamin D

Vitamin E

Vitamin K