Biomed 100 Practice Quiz
Chapter 11, Fall 2007
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  1. Which one of the following is not true of endocrine glands?
    1. They secrete hormones into body fluids.
    2. Their hormones usually reach specific body surfaces following secretion.
      3.
    3. Their secretions may help regulate the rates of specific chemical reactions (metabolism).
    4. Their secretions may help regulate development and growth.

  2. The action of a hormone is generally directed at
    1. any cell whose plasma membrane is permeable to steroids
    2. stem cells in the gland that secreted the hormone
    3. growing and dividing cells in tissues throughout the body
    4. target cells that have receptors for a specific hormone
      5.

  3. Which structure secretes human growth hormone (hGH)?
    1. thyroid gland
    2. adrenal cortex
    3. pituitary gland
      4.
    4. pancreatic islets

  4. Thyroid hormone is known to have an important influence on the development of the _?_ system.
    1. immune
    2. nervous
      3.
    3. urinary
    4. reproductive

  5. True or false? Thyroid hormone and parathyroid hormones are the two hormones with the greatest direct control over metabolic rate and heat production.
    1. True.
    2. False.
      3.

  6. Which one of the following is false?
    1. Aldosterone helps regulate fluid and electrolyte balance.
    2. Cortisol helps regulate metabolism of carbohydrates, proteins, and fat, especially during stress or following injury.
    3. Aldosterone and cortisol are both steroids.
    4. Aldosterone and cortisol are both secreted by the adrenal medulla (inner part of the adrenal gland).

  7. Insulin stimulates the transport of glucose (blood sugar)
    1. into the renal tubules of the kidneys
    2. into cells, especially fat and muscle cells
      3.
    3. out of cells, especially liver cells
    4. out of cells, especially fat and muscle cells


  8. The hormones that activate specific genes, causing them to produce certain chemical compounds, are generally
    1. steroid hormones
      2.
    2. nonsteroid hormones
    3. both of the above
    4. none of the above (no hormone activates specific genes)

  9. Glucagon is secreted by the _?_, and its effects are _?_ those of insulin.
    1. parathyroid glands / similar to
    2. adrenal medulla / opposite
    3. adrenal medulla / similar to
    4. pancreatic islets / similar to
    5. pancreatic islets / opposite
      6.