Biomed 100 Practice Quiz
Chapter 15, Fall 2006
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  1. Which one of the following is not an accessory organ of the digestive system?
    1. stomach
      2.
    2. liver
    3. gall bladder
    4. pancreas

  2. Villi are abundant in the _?_ and their function is to _?_.
    1. stomach / allow stomach to stretch
    2. liver / remove toxins from blood
    3. gall bladder / store bile
    4. small intestine / increase surface area for absorption
      5.
    5. pancreas / produce hormones that regulate digestion

  3. Which foods stay in the stomach for the longest time?
    1. foods that contain much sugar
    2. foods that contain much starch
    3. foods that contain much fat
      4.
    4. foods that contain much protein
    5. foods that contain abundant micronutrients

  4. Secretions from the liver and pancreas pass through a duct system and into the...
    1. pharynx
    2. stomach
    3. duodenum
      4.
    4. colon
    5. appendix

  5. The pancreas produces enzymes that are important for the digestion of...
    1. starch
    2. protein
    3. triglycerides (fats)
    4. all of the above
      5.
    5. none of the above (the pancreas does not produce any enzymes)

  6. Which statement best describes the digestive process?
    1. salivary enzymes start the process; gastric (stomach) enzymes finish it
    2. gastric (stomach) enzymes start the process; pancreatic enzymes finish it
    3. gastric (stomach) enzymes start the process; hepatic (liver) enzymes finish it
    4. pancreatic enzymes start the process; hepatic (liver) enzymes finish it
    5. pancreatic enzymes start the process; intestinal enzymes finish it
      6.

  7. In order for absorption to occur, nutrients must pass completely through _?_ of the wall of the alimentary canal (GI tract).
    1. the mucosa (mucous membrane)
      2.
    2. the mucosa and the submucosa
    3. all layers
    4. none of the above

  8. The most important function of bicarbonate ions in the digestive system is to...
    1. kill bacteria
    2. emulsify insoluble foods
    3. neutralize hydrochloric acid in intestine
      4.
    4. remove amino groups from nonessential amino acids
    5. aid in absorption of fat-soluble vitamins

  9. Vitamin C is a _?_-soluble vitamin that is needed for _?_.
    1. fat-soluble / production of collagen fibers
    2. fat-soluble / production of blood clotting factors
    3. water-soluble / production of collagen fibers
      4.
    4. water-soluble / production of blood clotting factors
    5. water-soluble / release of energy from carbohydrates, etc.

  10. Which one of the following is not one of the macronutrients?
    1. proteins
    2. vitamins
      3.
    3. carbohydrates
    4. triglycerides

  11. If necessary, _?_ can be produced in the body.
    1. glucose (blood sugar)
      2.
    2. essential fatty acids
    3. essential amino acids
    4. all of the above
    5. none of the above

  12. Functions of fat-soluble vitamins include all of the following except...
    1. acting as anti-oxidants to prevent tissue damage
    2. acting as coenzymes that are needed for release of energy from food
      3.
    3. involvement in calcium absorption
    4. involvement in vision as light-absorbing pigments
    5. involvement in production of blood-clotting factors