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1.34: Trace Elements

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    1. The primary organ that is adversely affected by chronic toxic cadmium exposure is:
      1. muscle
      2. lung
      3. kidney
      4. pancreas
      5. testis
    2. Copper is a cofactor for a large number of enzymes called oxidases.
      1. True
      2. False

    Use the following Key to answer Questions 3- 6

    1. 1, 2, and 3 are correct
    2. 1 and 3 are correct
    3. 2 and 4 are correct
    4. only 4 is correct
    5. all are correct
    1. Which of the following statements about chromium are true?
      1. It is an essential element.
      2. It is an important glucose tolerance factor.
      3. It is a co—factor in iron metabolism.
      4. It is found in urine mostly bound to peptides.
    2. Serum aluminum measurements may be requested for which of the following situations?
      1. monitoring end—stage renal dialysis patients.
      2. monitoring Al levels in dialysate water.
      3. patients receiving long term parenteral nutrition
      4. monitor liver transplant patients.
    3. Which of the following trace elements inhibit essential enzymes by reacting with the protein’s sulfhydryl groups?
      1. Mercury
      2. Lead
      3. Arsenic
      4. Aluminum
    4. Fluoride
      1. at concentrations of about 1 mg/L can promote caries resistance
      2. is not known to inhibit enzymes
      3. at concentrations greater than 10 mg/L can weaken teeth
      4. impairs thyroid gland function
    Answer
    1. c (p. 716)
    2. a (p. 710-711)
    3. a (p. 709)
    4. a (p. 715)
    5. b (p. 716,717)
    6. b (p. 712)

    1.34: Trace Elements is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by LibreTexts.

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