Digestion Worksheet - Ms Francois Science Resource
CSEC Human and Social Biology
Form 4
Ms. Francois
Digestion Worksheet
1. What are the wavelike contractions of smooth muscle that move food down the esophagus called?
2. What structure produces bile?
3. What is the purpose of bile?
4. List the order food passes through your body.
5. What is the modification of the small intestinal wall that serves to increase surface area.
6. In what segment(s) of the alimentary canal (mouth, stomach, small intestine, large intestine) does chemical digestion occur for each macromolecule type?
a. proteins _________________ c. carbohydrates _________________
b. lipids_________________ d. nucleic acids_________________
a. liver b. colon c. gallbladder d. esophagus
e. mouth f. pancreas g. tongue h. peristalsis
i. stomach j. large intestine k. villi l. teeth
_____7. stores a substance called bile, which physically breaks down fat droplets
_____8. Digestion begins when salivary gland secretions enter this
_____9. Minute projection extending from the walls of the small intestine and involved in absorbing products of digestion
_____10. used to cut, tear, and grind food; adult has 32
_____11. when you swallow food, muscular movements carry the food along this structure to the stomach
_____12. this organ absorbs excess water form undigested food prior to its release from the body as a solid waste
_____13. Muscular movement involving the walls of the digestive tract that serve to mix materials and move them along the tract
_____14. it pushes food to the back of the mouth prior to swallowing
_____15. this organ produces bile and detoxifies a variety of substances
_____16. produces digestive juices that are released into the small intestine
_____17. another name for the large intestine
_____18. functions include mixing food and serving as a reservoir prior to the food being passed on to the small intestine
19. Label the digestive system using the following words.
Mouth, oesophagus, stomach, liver, large intestines, small intestines, rectum, pancreas, anus, gallbladder, appendix
[pic]
20. Complete the following table using the table in your notes.
|Organ |Enzyme |Function |
|Mouth | | |
|Stomach |Hydrochloric acid | |
|Stomach | |Protein --( polypeptides |
|Stomach | |Clots soluble milk protein |
|Small Intestine | |Starch --( maltose |
|Small Intestine |Trypsin | |
|Small Intestine | |Lipds -(fatty acids + glycerol |
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