Set 10 - Vitamins and Minerals - 33 MCQs

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298. Which organ controls calcium levels in the blood?

  • (a) Brain.
  • (b) Heart.
  • (c) Lungs.
  • (d) Parathyroid gland.

299. Low blood levels of calcium can be caused by:

  • (a) Lack of vitamin A.
  • (b) Lack of vitamin E.
  • (c) Lack of vitamin D.
  • (d) Lack of vitamin C.

300. The average American man needs to eat how much additional calcium daily to compensate for the average excesses of sodium and protein?

  • (a) 100 mg.
  • (b) 250 mg.
  • (c) 350 mg.
  • (d) Over 500 mg.

301. Which food is highest in calcium?

  • (a) Milk.
  • (b) Sesame seeds.
  • (c) Hamburger.
  • (d) Kale.

302. Most of the phosphorus in the body is in:

  • (a) The bones.
  • (b) The skin.
  • (c) The hair.
  • (d) The blood.

303. There are more phosphate groups in:

  • (a) AMP.
  • (b) ADP.
  • (c) ATP.
  • (d) Creatine phosphate.

304. Magnesium in the body is found mostly in the bones and:

  • (a) Skin.
  • (b) Blood.
  • (c) Muscle.
  • (d) Extracellular fluid.

305. Magnesium:

  • (a) Relaxes muscles.
  • (b) Reduces high blood pressure.
  • (c) Increases calcium absorption into bones.
  • (d) All of the above.

306. The chemical symbol for iron is:

  • (a) Hg.
  • (b) Mn.
  • (c) Fe.
  • (d) Zn.

307. Iron is in the center of:

  • (a) Heme.
  • (b) Chlorophyll.
  • (c) White blood cells.
  • (d) Pyruvic acid.

308. Myoglobin:

  • (a) Is found in blood.
  • (b) Is found in muscle.
  • (c) Acquires oxygen from the lungs.
  • (d) All of the above.

309. The body lowers blood levels of iron:

  • (a) During infections.
  • (b) After a meal with a large serving of spinach.
  • (c) During exercise.
  • (d) In summer months.

310. Iron:

  • (a) Is not stored in the body.
  • (b) Is stored for long periods of time.
  • (c) Dietary lack appears as iron deficiency anemia immediately.
  • (d) Is needed daily in the diet.

311. During pregnancy, iron is most needed:

  • (a) In the prenatal period.
  • (b) In the first trimester.
  • (c) In the second trimester.
  • (d) In the third trimester.

312. The amount of iron in the body is controlled by:

  • (a) The kidneys.
  • (b) The bile.
  • (c) Varying absorption rates.
  • (d) Sweating.

313. Zinc is important for:

  • (a) Synthesis of insulin.
  • (b) Storage of insulin.
  • (c) Release of insulin.
  • (d) All of the above.

314. Zinc helps stabilize finger-like proteins by:

  • (a) Helping the proteins fold.
  • (b) Working as a cofactor to enzymes.
  • (c) Interfering with copper absorption.
  • (d) Binding to arginine and lysine.

315. Large amounts of zinc can reduce the availability of:

  • (a) Calcium.
  • (b) Phosphorus.
  • (c) Copper.
  • (d) Sodium.

316. The best source of zinc for younger infants is:

  • (a) Formulas based upon cow’s milk.
  • (b) Breast milk.
  • (c) Formulas based upon soy milk.
  • (d) Low-fat cow’s milk.

317. What percentage of pregnant women worldwide have insufficient zinc levels?

  • (a) 80 percent.
  • (b) 60 percent.
  • (c) 40 percent.
  • (d) 20 percent.

318. Populations most susceptible to zinc deficiency include:

  • (a) Children and infants.
  • (b) Pregnant women.
  • (c) Alcoholics.
  • (d) All of the above.

319. Whole wheat flour has:

  • (a) Half as much zinc as enriched flour.
  • (b) The same amount of zinc as enriched flour.
  • (c) Four times as much zinc as enriched flour.
  • (d) Eight times as much zinc as enriched flour.

320. Zinc can return to the intestines in:

  • (a) Pancreatic juice.
  • (b) Bile.
  • (c) Insulin.
  • (d) Transferrin.

321. Iodine is needed by:

  • (a) The hypothalamus gland.
  • (b) The thyroid gland.
  • (c) The liver.
  • (d) The adrenal glands.

322. Deficiency of iodine can cause:

  • (a) Beriberi.
  • (b) Goiter.
  • (c) Pellagra.
  • (d) All of the above.

323. Which is NOT a good source of iodine?

  • (a) Seaweed.
  • (b) Fish.
  • (c) Apples.
  • (d) Iodized salt.

324. Selenium is part of which important antioxidant enzyme?

  • (a) Superoxide dismutase.
  • (b) Cytochrome.
  • (c) Vitamin C.
  • (d) Glutathione peroxidase.

325. Manganese is used as an antioxidant in the:

  • (a) Mitochondria.
  • (b) Blood.
  • (c) Cell membranes.
  • (d) Brain.

326. Which form of chromium is toxic?

  • (a) Trivalent chromium.
  • (b) Chromium nicotinate.
  • (c) Hexavalent chromium.
  • (d) Chromium in yeast.

327. Chromium enhances the effect of:

  • (a) Thyroxine.
  • (b) Insulin.
  • (c) Theobromine.
  • (d) Caffeine.

328. Chromium assists:

  • (a) With blood sugar regulation.
  • (b) With vision.
  • (c) With kidney function.
  • (d) With thyroid function.

329. Cobalt is found in:

  • (a) Vitamin A.
  • (b) Vitamin B12.
  • (c) Vitamin C.
  • (d) Vitamin K.

330. Lead:

  • (a) Is an essential nutrient.
  • (b) Is nutritious, but nonessential.
  • (c) Is very toxic.
  • (d) Is good for children.