In the context of vitamin A, retinol can be synthesized in the body from _____.

In the context of vitamin A, retinol can be synthesized in the body from _____.
 A) lycopene
  B) retinoic acid
  C) retinal
  D) xanthin

Q. 2

If you suffer from a health condition that decreases the bioavailability of a particular nutrient that you eat, it is recommended to:
 A) take dietary supplements.
  B) take more of that particular nutrient in its natural form.
  C) change the medication taken to treat the health condition.
  D) exercise to increase the bioavailability of that nutrient.

Q. 3

Which of the following vitamins is circulated away from the small intestine by chylomicra in the lymph?
 A) Folate
  B) Vitamin C
  C) Biotin
  D) Vitamin K

Q. 4

Which of the following foods can be recommended to a person who wants to increase the intake of vitamin K?
 A) Broccoli
  B) Sweet Corn
  C) White Mushrooms
  D) Beets

Q. 5

Unlike B vitamins, vitamin C is:
 A) not a coenzyme.
  B) fat-soluble.
  C) not present in plant-based foods.
  D) is toxic in high doses.

Q. 6

Cheilosis, a symptom of ariboflavinosis, is characterized by:
 A) a chronic degeneration of the retina.
  B) bowed legs or knocked knees.
  C) sores on the outside and corners of the lips.
  D) muscle weakness, fatigue, and confusion.

Q. 7

Which of the following is true of menaquinone, a form of vitamin K?
 A) It is produced by bacteria in the large intestine.
  B) It is considered to be a nonessential nutrient.
  C) It is synthesized in the cells of human body.
  D) It is found naturally in plant-based foods.

Q. 8

Severe folate deficiency causes a condition called _____.
 A) sickle cell anemia
  B) microcytic, hypochromic anemia
  C) pernicious anemia
  D) megaloblastic, macrocytic anemia

Q. 9

Which of the following is true of pantothenic acid?
 A) It is not found in plant-based foods.
  B) It is a fat-soluble vitamin.
  C) It is destroyed at high temperatures.
  D) It does not contain nitrogen.