Download Digestive System Worksheets

Rebel Biology - Nutrition Answer each of the following questions.
Read the
instructions carefully and follow directions.
Name__________________________
Part I - Multiple Choice(12)
1._____The dietary sources of carbohydrates include:
a) sugary foods
b) starchy foods
c) high fiber foods
d) all of the above e) none of the above
2._____Which of the following are true about heterotrophs:
a) they include all animals
b) they cannot synthesize their own food
c) they must take in “ready made” food d) all of the above are correct
3._____Overall, in order of occurrence, which process happens first
a) photosynthesis b) absorption
c) cellular resp.
d) elimination
4._____Which of the following are not associated with the stomach:
a) chyme
b) ulcer
c) villi
d) hydrochloric acid
5._____Where does most absorption take place in humans
a) mouth
b) stomach
c) small int d) pancreas
6._____What are the end products of cellular respiration
a) O2 and CO2
b) ATP and H2O
c) ADP and H2O
d) CO2 and ADP
7._____In which of the following does mechanical digestion take place
a) stomach and rectum b) mouth and intestine
c) mouth and stomach
d) none of the above
8._____What is the source and function of bile:
a) pancreas/digestion
b) liver/emulsification
c) gall bladder/peristalsis
d) stomach/digestion
9._____Which of the following statements about fiber is incorrect:
a) it is a totally digestible material
b) it is made of cellulose
c) it stimulates the lining of the sm intestine
d) all of the above are correct
10._____In general how do organisms get their nutrients:
a) some synthesize their own
b) some take in sources that contain nutrients
c) all organisms obtain food differently d) both a and b are correct
e) none of the above
11._____Which is not an important mineral
a) calcium
b) carbon
c) iron
d) tungsten
12. _____What molecule plays an important role in digestion that has no nutritional
value
a) adipose
b) cellulose c) glucose
d) amylose
Part II - Matching(10)
_____1. Enzyme that breaks down starch
_____2. Wave like contractions of alimentary canal
_____3. Digestive enzyme in gastric juices
_____4. Thin, soupy, liquid produced in stomach
_____5. Accessory gland that secretes sodium bicarbonate
into the small intestine
_____6. Tiny vessels of the lymphatic system located in the
small intestine
a. villi
b. gallbladder
c. pepsin
d. peristalsis
e. gastric juice
_____7. Organ in which bile is stored
_____8. Absorbs vitamins and water
_____9. Substance produced in the liver that emulsifies fat
_____10.Fingerlike projections inside the small intestine
h. chyme
i. bile
j. lg. intestine
k. salivary
f. lacetals
g. pancreas
amylase
Part III - Fill in the Blanks(10)
1. Food contains SIX kinds of Nutrients, What are they?
________________________________________________________________
________________________________________________________________
2. What do you think the basic energy needs of an average-sized adult human in
calories per day? ____________________
3. Inorganic substances required that perform vital functions in the body are called
____________
4. Your body cannot break down ________________________, so it has no value as a
nutrient.
5. The three parts of the small intestine are
_________________________________________________________
6. The passage that carries food between the pharynx and the stomach is the
____________________________
7. The pH of the stomach is about ____________
8. How many sphincter muscles do you have?_____________
Part IV - Labeling(10)
1. ______________________________________
2.______________________________________
3.______________________________________
4.______________________________________
5.______________________________________
6.______________________________________
7.______________________________________
8.______________________________________
9.______________________________________
10._____________________________________
11._____________________________________
12._____________________________________
13._____________________________________
14._____________________________________
15._____________________________________
2.
Beginning with the mouth trace the path that food takes as it moves through the
digestive system. Include the enzymes that work on the food as well as the
glands that produce them, distinguish the state of the food and the location of the
absorption of the nutrients.(20)
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