1. How is the major form of Vitamin A in foods of animal origin called?

Cholecalciferol

Pyridoxine

Retinol

Thiamine

2. Which of the following statements is WRONG?

Vitamin A is a fat-soluble nutrient.

Vitamin A is a water-soluble nutrient.

The molecular formula of retinol is C20H30O.

Vitamin A is an essential human nutrient.

3. What is the recommended daily intake of vitamin A (Dietary Reference Intake, DRI)?

900 nanogram for men, 700 nanogram for women

900 micrograms for men, 700 micrograms for women

900 milligram for men, 700 milligram for women

900 grams for men, 700 grams for women

4. Which chemical compound is related chemically to vitamin A and acts as a provitamin?

Beta carotene

Cholesterol

Lycopene

Purine

5. What is the earliest manifestation of vitamin A deficiency?

Diabetes mellitus

Scurvy

Impaired vision / Night blindness

Rickets

6. Which food has the highest vitamin A content?

Carrots

Cocoa butter

Oatmeal

Cod liver oil