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5 Written questions

5 Matching questions

  1. Target Cells
  2. Pituitary Gland
  3. Negative Feedback
  4. Amino Acid-Based Hormones
  5. Pancreas
  1. a Specific cells that hormones travel to, to produce a specific effect.
  2. b Hormones made of amino acids. They can be a single modified amino acido or a protein made up of 3-200 amino acids. They are usually water soluble.
  3. c One way to maintain homeostasis inside an organism or cell, is a negative feedback loop. In this process the final step in a series of events inhibits the initial signal in the series.
  4. d It mostly contains exocrine cells, but specialized cells in the pancreas call the islets of Langerhans, function as an endocrine gland.
  5. e It is suspended from the hypothalamus by a short stalk. The hypothalamus produces hormones that are stored in this gland or that regulate this gland's activity.

5 Multiple choice questions

  1. Substances that are released by cells that act to regulate the activity of other cells in the body.
  2. Many hormones work together in pairs to regulate the level of critical substances. These hormones have opposite effects.
  3. Located near the lower part of the larynx, this endocrine gland secretes the hormones thyroxine and triiodothyronine. Both of these hormones are derived from the same amino acid and are synthesized with iodine atoms. Thyroid-stimulating hormones (TSH) regulates the release of the thyroid hormones. Release of TSH from the anterior pituitary gland is regulated by the hypothalamus. The thyroid gland is important because it promotes human development because it produces calcitonin which stimulates the transfer of calcium ions from the blood to the bone. The thyroid hormones help maintain normal heart rate, blood pressure and body temperature. They also stimulate enzymes that are associated with glucose oxidation, oxygen consumption, generating heat, and increasing cellular metabolic rates. Lastly, they promote carbohydrate usage over fat usage for energy.
  4. A group of sex hormones secreted by the testes.
  5. Stimulate the anterior pituitary to make and secrete hormones.

5 True/False questions

  1. Exocrine GlandsDuctless organs that secrete hormones either into the bloodstream or into the extra-cellular fluid or liquid around the cell.


  2. Luteinizing Hormone (LH)A hormone secreted by the anterior pituitary stimulates secretion of sex hormones from the gonads. It stimulates the secretion of estrogen and progesterone in females. In males it stimulates the testes to secrete a group of sex hormones called androgens. An example of an androgen is testosterone.


  3. Endocrine SystemThe endocrine glands and specialized cells as a whole.


  4. Estrogen & ProgesteroneThese amino acid-based hormones produced in the adrenal medulla are also known as adrenaline and noradrenaline. These hormones work together to orchestrate the nervous system's reaction to stress and its "fight-or-flight" reaction response to danger. When a person is stressed the medulla secretes both hormones into the bloodstream. They increase heart rate, blood pressure, blood glucose level, and blood flow to the heart and lungs. They also stimulate enlargement of the bronchial tubes and dilation of the pupils.


  5. Endocrine GlandsSecrete substances through ducts (basically tubes). These substances can be water, enzymes, and mucus.


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