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Digestive System Quiz

  1. If Jane ate a chocolate chip cookie. What is the proper sequence the cookie goes through from the mouth to the anus?
  2. What is food called when it enters the pharynx?
  3. What is a sphincter?
  4. Which of the following is not a function of the stomach?
    1. Mix/store ingested food
    2. Releases CCK
    3. Secretions help dissolve food
    4. Help control passage of food into small intestines
  5. What are the bonds and components that hold proteins together? 
    1. Peptide bond, monosaccharide
    2. Peptide bond, amino acids
    3. Nucleotides, nucleotide bases
    4. Nucleotides, amino acids
  6. What nutrients are absorbed the most? In what region?
  7. What does the stomach secrete?
  8. What is CCK? What does it do?
  9. What are the accessory organs of the digestive system? What are their functions?



  1. Mouth, Pharynx, Esophagus, Stomach, Small intestines, Large intestine, Rectum, Anus
  2. Bolus (mucins bind food into softened, lubricated ball)
  3. Sphincter: ring of smooth muscle, the contractions of which close off a passage way or opening to body surface
  4. b
  5. b
  6. Jejunum, small intestines
  7. gastric fluid
  8. CCK: a hormone which causes secretion of pancreatic enzymes + contractions of gall bladder
  9. See chart below:  


Salivary gland

Secreted saliva, fluid with enzymes, buffers and mucous
Pancreas Secrete enzyme that digest all major food molecules and buffers against HCl from stomach
Liver Secrete bile (for fat emulsification); roles in carbohydrates, fat, protein metabolism
Gall bladder Stores + concentrates bile from liver

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