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Name__________________________
Date_______________
Hr_______
Chapter 29 Practice
Use Figure 29-1 to answer questions 1 –5.
Figure 29-1
1. _______
Which structure shown in Figure 29-1 is the esophagus?
2.
_______ Which structure shown in Figure 29-1 is the stomach?
3.
_______ Which structure shown in Figure 29-1 is the liver?
4. ________________________ In Figure 29-1, letter “E” is the site of chemical digestion of Lipids (fats). Name the
Organ.
5. ________________________ In Figure 29-1, letter “D” produces enzymes to neutralize the chyme which enters
the small intestine. Name the organ.
Multiple Choice
Identify the choice that best completes the statement or answers the question.
6.______ Which nutrients are made up of amino acids?
a. unsaturated fats
b. saturated fats
c. proteins
d. carbohydrates
7.______ What process involves muscle contractions that move food through the esophagus?
a. absorption
b. peristalsis
c. mechanical digestion
d. elimination
8.______ What substance coats and protects the inside of the digestive tract from digestive acids?
a. saliva
b. pepsin
c. mucus
d. bile
9.______ In what part of the body does most chemical digestion take place?
a. large intestine
b. liver
c. pancreas
d. small intestine
10.______ In what part of the body are most of the nutrients absorbed?
a. mouth
b. stomach
c. small intestine
d. large intestine
11. ______ What organ produces bile?
a. stomach
c. pancreas
b. small intestine
d. liver
12. ______ Which of the following enables the small intestine to absorb large amounts of nutrients?
a. villi
b. pancreas
c. liver
d. gallbladder
13.______ What “food tube” carries food between the pharynx and the stomach?
a. small intestine
b. epiglottis
c. esophagus
d. large intestine
14.______ The stomach breaks down food into an acidic liquid called
a. pepsin.
b. chyme.
c. amylase.
d. bile.
15.______ Where does the process of chemical digestion begin?
a. stomach
b. esophagus
c. small intestine
d. mouth
16.______ How does bile help in digestion?
a. breaks up proteins
c. breaks up sugars.
b. breaks up fats.
d. breaks up nucleic acids.
17.______What is one of the roles of the pancreas in digestion?
a. absorb nutrients
b. mechanical digestion
c. store bile
d. neutralize acids
18.______ Chemical digestion of proteins begins in the:
a. mouth
b. liver.
c. small intestines.
d. stomach.
19.______ Chemical digestion of starches begins in the:
a. mouth
b. liver
c. large intestine
d. pancreas
20.______ Vitamin K and B are produced by bacteria in the:
a. stomach
b. small intestine
c. liver
d. large intestine
22.______ What enzyme found in saliva begins the chemical digestion of starches?
a. amylase
b. lipase
c. pepsin
d. hydrochloric acid
23.______ What does mechanical digestion in the stomach involve?
a. absorption of nutrients by villi
b. pepsin and bile
c. muscle contractions
d. bile and pancreatic fluid