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Chapter 2 Digestion Traditional



Completion
Complete each statement.
 

 1. 

The esophagus and the stomach are lined with a thick, slippery substance called ____________________.
 

 

 2. 

Chemical digestion in the stomach is helped by the strong acid called ____________________ acid.
 

 

 3. 

The ____________________ stores bile and releases it through a tube into the small intestine.
 

 

 4. 

Nutrient molecules pass from the small intestine into the bloodstream through tiny structures called ____________________.
 

 

 5. 

Enzymes are proteins that help in the kind of digestion called ____________________ digestion.
 

 

 6. 

When you swallow, a flap of tissue called the ____________________ prevents food from entering your windpipe.
 

 

 7. 

One of the roles of the ____________________ intestine is to prepare waste material for elimination.
 

 

Short Answer
 
 
Use the diagram to answer each question.

nar001-1.jpg
 

 8. 

Identify structures A through G.
 

 9. 

Give the letter and name of the organ into which food moves after leaving organ B.
 

 10. 

Give the letters and names of the two organs shown in the diagram through which food does NOT travel.
 

 11. 

What is the name and function of organ A?
 

 12. 

What is peristalsis? Give the letters of two organs in which it occurs.
 

 13. 

What are organs E and F? How do they compare in size?
 
 
Use the diagram to answer each question.

nar002-1.jpg
 

 14. 

Identify organ D and give its function.
 

 15. 

Identify organ A and give its function.
 

 16. 

Give the letter and name of the organ through which food is absorbed.
 

 17. 

Could organ C perform its function without organ B? Explain.
 

 18. 

Give the letter and name of the organ in which almost all chemical digestion takes place.
 

 19. 

Name the structures that line organ C and describe their function.
 

Essay
 

 20. 

Explain how your mouth helps to digest food.
 

 21. 

Explain how the liver and pancreas function in the digestion of food.
 

 22. 

Identify two chemicals in digestive juice in the stomach and explain what they do.
 



 
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