Name _________________________________ Period _________ Digestion Study Guide HBS Lessons 2-7 1. Describe how food moves through the digestive tract. _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 2. List the steps involved in performing chemical test for sugar and starch. _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 3. List at least four food sources for proteins, carbohydrates, and fats. _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 4. Explain why the body needs proteins, carbohydrates, and fats. _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 5. State the function of digestive enzymes. _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 6. How does the mouth get food into a form that can be absorbed into the bloodstream and used by the cells to maintain life? _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 7. Name the digestive enzymes in the mouth and the stomach AND explain their specific function. _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 8. How does the stomach get food into a form that can be absorbed into the bloodstream and used by the cells to maintain life? _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 9. Explain the function of mucus. _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 10.Define and give examples of diffusion and indicate why it is also called passive transport. _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 11.Explain the difference between active and passive transport and indicate the importance of both processes in absorption. _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 12.How does the small intestine get food into a form that can be absorbed into the bloodstream and used by the cells to maintain life? _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 13.Indicate why the small intestine needs an extensive internal surface area. _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 14.Explain the functions of the large intestine. _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 15.List in order the organs of the digestive tract, beginning with the mouth. _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 16. Explain how the digestive, respiratory, and circulatory systems help on another do their jobs. ____________________________________________________________________________ _____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ _____________________________________________________________________________ ____________________________________________________________________________