Set 8 - Vitamins and Minerals - 33 MCQs
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232. Thiamin is known as:
- (a) Vitamin B1.
- (b) Vitamin B2.
- (c) Vitamin B3.
- (d) Vitamin B4.
Answer: (a)
233. Abundant natural B vitamins are found in:
- (a) B-complex vitamin supplements.
- (b) Soybean oil.
- (c) Peaches.
- (d) Nutritional yeast.
Answer: (d)
234. The form of vitamin B3 that can cause skin flushing is:
- (a) Niacinamide.
- (b) Niacin.
- (c) Nicotinamide.
- (d) All of the above.
Answer: (b)
235. Riboflavin helps reactivate this important antioxidant:
- (a) Tryptophan.
- (b) Cobalamin.
- (c) Biotin.
- (d) Glutathione.
Answer: (d)
236. Part of our niacin requirement can be met by dietary:
- (a) Tryptophan.
- (b) Lysine.
- (c) Methionine.
- (d) Leucine.
Answer: (a)
237. Niacin deficiency can cause:
- (a) Blindness.
- (b) Pellagra.
- (c) Beriberi.
- (d) Scurvy.
Answer: (b)
238. Which B vitamin makes up a large part of coenzyme A?
- (a) Pantothenic acid.
- (b) Tryptophan.
- (c) Thiamin.
- (d) Biotin.
Answer: (a)
239. Coenzyme A is an important part of:
- (a) Energy production.
- (b) The TCA cycle.
- (c) The Krebs cycle.
- (d) All of the above.
Answer: (d)
240. When white flour is made from whole grains, what percentage of pantothenic acid is lost?
- (a) 43 percent.
- (b) 28 percent.
- (c) 12 percent.
- (d) 5 percent.
Answer: (a)
241. Which vitamin is extensively stored in muscle tissue?
- (a) Niacin.
- (b) Vitamin C.
- (c) Pyridoxine.
- (d) Vitamin B12.
Answer: (c)
242. Folic acid, as opposed to folates, is found in:
- (a) Food.
- (b) Vitamin pills.
- (c) The body.
- (d) A metabolically active form in the body.
Answer: (b)
243. Which of the following is active in eliminating homocysteine from blood?
- (a) Pyridoxine.
- (b) Folic acid.
- (c) Vitamin B12.
- (d) All of the above.
Answer: (d)
244. Excess folate is removed from the body:
- (a) Through the lungs.
- (b) In urine.
- (c) In bile.
- (d) None of the above.
Answer: (c)
245. Supplementary vitamin B12 is often in the form of:
- (a) Methylcobalamin.
- (b) Deoxyadenosyl cobalamin.
- (c) Cyanocobalamin.
- (d) Magentocobalamin.
Answer: (c)
246. Which has the highest energy level?
- (a) ADP.
- (b) AMP.
- (c) APP.
- (d) ATP.
Answer: (d)
247. Which one is a real vitamin?
- (a) Vitamin K.
- (b) Vitamin T.
- (c) Vitamin P.
- (d) Vitamin U.
Answer: (a)
248. Which of the following is NOT a cure for scurvy?
- (a) The tips of young arbor vitae evergreen needles.
- (b) Sauerkraut.
- (c) Limes.
- (d) Fresh fish.
Answer: (d)
249. Vitamin C is:
- (a) Synthesized by only a few animals.
- (b) Synthesized by humans.
- (c) Synthesized by most animals.
- (d) Must be obtained from food for all animals.
Answer: (c)
250. The amount of vitamin C synthesized by a 154-pound dog each day is:
- (a) 2800 mg.
- (b) 280 mg.
- (c) 28 mg.
- (d) 2.8 mg.
Answer: (a)
251. Collagen is a major structural component of:
- (a) Blood vessel walls.
- (b) Skin.
- (c) Teeth.
- (d) All of the above.
Answer: (d)
252. Which is NOT needed to synthesize collagen?
- (a) Lysine.
- (b) Magnesium.
- (c) Iron.
- (d) Proline.
Answer: (b)
253. The difference between ascorbic acid and dehydroascorbic acid is:
- (a) Only ascorbic acid comes from food.
- (b) Dehydroascorbic acid is the oxidized form of ascorbic acid.
- (c) Ascorbic acid is the oxidized form of dehydroascorbic acid.
- (d) Dehydroascorbic acid is found only in secret government labs.
Answer: (b)
254. Vitamin C:
- (a) Prevents colds.
- (b) Has no effect on colds.
- (c) Lessens the severity of colds.
- (d) Lengthens the duration of colds.
Answer: (c)
255. Ascorbated vitamin C:
- (a) Does not have a neutral pH.
- (b) Is ascorbic acid attached to a mineral.
- (c) Always contains bioflavonoids.
- (d) Creates intestinal irritation in large doses.
Answer: (b)
256. Which form of vitamin A is not called “preformed”?
- (a) Retinyl palmitate.
- (b) Beta-carotene.
- (c) Retinal.
- (d) Retinol.
Answer: (b)
257. The form of Vitamin A that is an antioxidant is:
- (a) Retinol.
- (b) Retinyl esters.
- (c) Retinoic acid.
- (d) None of the above.
Answer: (d)
258. The form of vitamin A that is used for transport of the vitamin in the body is:
- (a) Retinol.
- (b) Retinyl esters.
- (c) Retinoic acid.
- (d) None of the above.
Answer: (a)
259. Beta-carotene is abundant in:
- (a) Dairy products, especially milk.
- (b) Yellow and orange vegetables and fruit.
- (c) Fish, especially salmon.
- (d) Beef liver.
Answer: (b)
260. Vitamin A reduces risk of infections because:
- (a) It strengthens mucous membranes.
- (b) It is needed in the development of lymphocytes.
- (c) It is needed for the regulation of the immune system.
- (d) All of the above.
Answer: (d)
261. Vitamin A in the form of retinoic acid:
- (a) Enables red blood cell production.
- (b) Enables fetal development.
- (c) Enables cell differentiation.
- (d) All of the above.
Answer: (d)
262. The type of vitamin A NOT associated with toxicity is:
- (a) Beta-carotene supplements.
- (b) Beta-carotene in food.
- (c) Vitamin A in liver.
- (d) Supplements of vitamin A.
Answer: (b)
263. To prevent osteoporosis in older people:
- (a) Keep vitamin A in the diet and supplements at a minimum.
- (b) Eat the RDA of vitamin A in food.
- (c) Take double the RDA of vitamin A in supplement form.
- (d) Take vitamin A only in the form of retinoic acid.
Answer: (b)
264. Calcidiol is:
- (a) Stored in the liver.
- (b) The active form of vitamin D.
- (c) Made in the skin from sunlight.
- (d) Made by irradiating a fungus.
Answer: (a)