True/False
Indicate whether the
statement is true or false.
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1.
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Absorption moves food through the digestive system.
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2.
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Most materials are absorbed into the bloodstream in the large intestine.
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Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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3.
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What is the triangular organ that lies between the stomach and the first part of
the small
intestine and produces enzymes that help break down starches, proteins, and fats?
a. | pancreas | c. | stomach | b. | gallbladder | d. | prostate |
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4.
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What is a thick, slippery substance produced by the body that makes food
move
more easily through the digestive system?
a. | saturated fat | c. | mucus | b. | enzymes | d. | water |
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5.
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What nutrient acts as a helper molecule in many different chemical reactions
within the
body?
a. | vitamin | c. | fat | b. | enzyme | d. | sugar |
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6.
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What is the process by which nutrient molecules pass through the wall of the
digestive
system into the blood?
a. | elimination | c. | secretion | b. | absorption | d. | adaptation |
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7.
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What is the organ that stores bile until it is needed in the small
intestine?
a. | pancreas | c. | liver | b. | gallbladder | d. | stomach |
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8.
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What is a protein that speeds up chemical reactions in the body?
a. | enzyme | c. | protien | b. | vitamin | d. | carbohydrate |
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9.
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The building blocks of proteins are
a. | vitamins. | c. | amino acids.
| b. | minerals.
| d. | fats. |
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10.
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The enzyme in saliva chemically breaks down
a. | fats.
| c. | glucose.
| b. | proteins.
| d. | starches. |
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11.
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Most mechanical digestion takes place in the
a. | liver.
| c. | stomach.
| b. | esophagus.
| d. | small
intestine.
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12.
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Bile is produced by the
a. | liver.
| c. | small intestine.
| b. | pancreas.
| d. | large intestine.
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13.
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Which of the following parts of the digestive system is best paired with its
function?
a. | esophagus—digests carbohydrates
| c. | small intestine—absorbs
water
| b. | stomach—stores food | d. | liver—produces bile |
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14.
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Use the table below and your knowledge of science to answer  If a meal is eaten at noon, what is happening to the food at 1 p.m.? a. | Saliva is breaking down starch into sugar.
| c. | Fats are being
digested.
| b. | Proteins are being digested into short chains of amino acids.
| d. | Digested food is being absorbed into the blood.
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15.
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Use the table below and your knowledge of science to answer  For food eaten at noon, absorption cannot have begun by a. | 1 p.m.
| c. | 9 p.m.
| b. | 7 p.m.
| d. | 12 p.m. |
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16.
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Which of the following organs is not just a digestive organ?
Hint
a. | stomach
| c. | small intestine
| b. | liver
| d. | large intestine
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