VITAMINS

I. Fat-soluble vitamins are absorbed in the lymphatic system.

II. Water-soluble vitamins are absorbed into blood through the portal vein.

• Statement I is correct.

• Statement II is correct.

• Both statements are correct.

• Both statements are incorrect.

Answer explanation

(Fundamentals in Nutrition and Dietetics Review Manual Vol. 2 Nutritional Biochemistry and Medical Nutrition Therapy, p. 84)

Considered as the "most unstable vitamin"

• Vitamin K

• Vitamin B2

• Vitamin C

• Vitamin B5

Answer explanation

Vitamin C is stable to acid but easily destroyed by oxidation, light, alkali, and heat, especially in the presence of iron and copper. These chemical properties make it the most unstable vitamin.

(Fundamentals in Nutrition and Dietetics Review Manual Vol. 2 Nutritional Biochemistry and Medical Nutrition Therapy, p. 84)

Also known as Antineuritic Factor, Anti-beriberi Factor, and Morale Vitamin.

• Vitamin B1

• Vitamin B2

• Vitamin B3

• Vitamin B5

Answer explanation

Other names of vitamin B1 (Thiamine) include Antineuritic factor, anti-beriberi factor, and morale vitamin. (Fundamentals in Nutrition and Dietetics Review Manual Vol. 2 Nutritional Biochemistry and Medical Nutrition Therapy, p. 86)

Also known as Tocopherol, Antisterility factor, Antioxidant vitamin, or Anti-hemolytic vitamin.

• Vitamin A

• Vitamin D

• Vitamin E

• Vitamin K

Answer explanation

(Fundamentals in Nutrition and Dietetics Review Manual Vol. 2 Nutritional Biochemistry and Medical Nutrition Therapy, p. 103)

1 mg Niacin is equivalent to how many mg of tryptophan?

• 50

• 60

• 70

• 80

Answer explanation

1 mg Niacin = 60 mg tryptophan

(Fundamentals in Nutrition and Dietetics Review Manual Vol. 2 Nutritional Biochemistry and Medical Nutrition Therapy, p. 88)

This vitamin is also known as pantothenic acid, panthotheine, pantothenol, or antichromotrichial factor.

• Vitamin B2

• Vitamin B3

• Vitamin B5

• Vitamin B7

Answer explanation

(Fundamentals in Nutrition and Dietetics Review Manual Vol. 2 Nutritional Biochemistry and Medical Nutrition Therapy, p. 89)

Helps in the synthesis of neurotransmitters serotonin and norepinephrine.

• Vitamin B1

• Vitamin B3

• Vitamin B6

• Vitamin B7

Answer explanation

(Fundamentals in Nutrition and Dietetics Review Manual Vol. 2 Nutritional Biochemistry and Medical Nutrition Therapy, p. 92)

Other names of this vitamin are Menadione, Anti-hemorrhagic vitamin, Coagulation factor, Menaquinone, Phylloquinone, or Papthoquinone

• Vitamin A

• Vitamin D

• Vitamin E

• Vitamin K

Answer explanation

(Fundamentals in Nutrition and Dietetics Review Manual Vol. 2 Nutritional Biochemistry and Medical Nutrition Therapy, p. 105)

Also known as Anticoscorbutic Factor, Cevitamic Acid, or Hexuronic Acid.

• Vitamin B9

• Vitamin C

• Vitamin A

• Vitamin B12

Answer explanation

Other names for vitamin C include Ascorbic Acid, Antiscorbutic Factor, Cevitamic Acid, or Hexuronic Acid.

(Fundamentals in Nutrition and Dietetics Review Manual Vol. 2 Nutritional Biochemistry and Medical Nutrition Therapy, p. 84)

Other names are pyridoxine, pyridoxic acid, pyridoxal, pyridoxol, or pyridoxamine.

• Vitamin B3

• Vitamin B4

• Vitamin B5

• Vitamin B6

Answer explanation

(Fundamentals in Nutrition and Dietetics Review Manual Vol. 2 Nutritional Biochemistry and Medical Nutrition Therapy, p. 91)