The Digestive System Lesson 6 - Self-Evaluation

Directions: Select the best answer for each of the following questions and then click on the submit button.

1. The process of chewing food and mixing it with saliva in the mouth is referred to as ____________.
   mastication
   digestion
   defecation
   peristalsis

2. The digestion of proteins, which occurs primarily in the stomach, requires a very acid environment, provided in the stomach by ____________.
   bile
   saliva
   pancreatic juices
   HCL (hydrochloric acid)

3. A circular muscle constricting an orifice, forming a type of "valve," is referred to as a(n) __________.
   duct
   sphincter
   annulus
   none of the above

4. The substance secreted by the liver and stored in the gall bladder and released into the small intestines for the emulsification of fats is __________.
   bile
   saliva
   pancreatic juice
   HCL (hydrochloric acid)

5. Food material passes from the small intestine to the large intestine (colon) through the sphincter valve referred to as the __________.
   appendix
   cardiac sphincter
   pyloric sphincter
   ileocecal valve

6. What is the function of the colon?
   To absorb any remaining water and electrolytes.
   To move waste material out of the body.
   To store waste material until it is time for it to be evacuated.
   All of the above.

7. Which of the following enzymes help break down fats (lipids)?
   protease
   lipase
   cellulase
   amylase

8. The undigestible parts of the plants we eat are referred to as __________.
   fiber
   flora
   fauna
   chlorophyll

9. The beneficial bacteria that are found in the body and that are essential to good health are known as __________.
   fiber
   flora
   fauna
   febrile

10. Medical science has discovered that many stomach problems, including ulcers, are associated with a bacteria called __________.
    Helicobacter pylori (H. pylori)
    E. Coli
    Streptococcus
    Staphylococcus
    Lactobacillus acidophilus

11. True or False: The primary ingredient found in milk thistle that is responsible for its beneficial effects for the liver is silymarin.
    True
    False

12. True or False: Herbs that make a slippery substance when combined with water, providing a soothing effect on inflammed tissues, are known as mucilaginous herbs.
    True
    False

       

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