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1 | |
The nutrition of an animal includes |
| | A) | the process of taking in food. |
| | B) | the process of digesting food. |
| | C) | the processes of absorbing and storing food. |
| | D) | all of the above (a-c). |
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2 | |
Most higher invertebrates (e.g., insects) utilize ________________ that allows them to exploit different food sources. |
| | A) | intracellular digestion |
| | B) | both intracellular and extracellular digestion |
| | C) | variations in extracellular digestion |
| | D) | just extracellular digestion |
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3 | |
The development of an anus and complete digestive tract first occurred in the |
| | A) | sponges. |
| | B) | aschelminths. |
| | C) | molluscs. |
| | D) | cnidarians. |
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4 | |
Bats that eat primarily arthropods, such as moths, are called |
| | A) | autotrophs. |
| | B) | heterotrophs. |
| | C) | carnivores. |
| | D) | insectivores. |
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5 | |
A vertebrate, such as you, can extract approximately __________ calories per gram of carbohydrate. |
| | A) | two |
| | B) | four |
| | C) | six |
| | D) | eight |
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6 | |
In animals, which of the following would be categorized as a trace mineral? |
| | A) | copper |
| | B) | calcium |
| | C) | chlorine |
| | D) | phospholipid |
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7 | |
Which of the following is not a fat-soluble vitamin? |
| | A) | A |
| | B) | B |
| | C) | D |
| | D) | K |
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8 | |
Deposit feeding occurs in |
| | A) | earthworms. |
| | B) | some snails. |
| | C) | sea urchins. |
| | D) | all of the above (a-c). |
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9 | |
Which of the following spends the most time eating? |
| | A) | herbivores |
| | B) | carnivores |
| | C) | suspension feeders |
| | D) | discontinuous feeders |
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10 | |
Digestion involves |
| | A) | feeding. |
| | B) | extracellular digestion. |
| | C) | intracellular digestion. |
| | D) | all of the above (a-c). |
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11 | |
Salivary glands are found in all of the following except most |
| | A) | fishes. |
| | B) | snakes. |
| | C) | birds. |
| | D) | fishes and birds. |
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12 | |
Gizzards are found in all of the following except |
| | A) | crocodilians. |
| | B) | birds. |
| | C) | some fishes. |
| | D) | mammals. |
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13 | |
All of the following are ruminant animals except |
| | A) | cows. |
| | B) | sheep. |
| | C) | horses. |
| | D) | goats. |
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14 | |
In mammals, HCl is produced by glandular cells of the |
| | A) | pancreas. |
| | B) | stomach. |
| | C) | small intestine. |
| | D) | rectum. |
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15 | |
All of the following are functions of the vertebrate stomach except |
| | A) | stores and mixes the food bolus received from the esophagus |
| | B) | secretes substances (enzymes, mucus) that initiates digestion |
| | C) | is a site of absorption of lipids |
| | D) | helps control the rate food moves into the small intestine |
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16 | |
The stomach contains __________ glands. |
| | A) | gastric |
| | B) | mucous |
| | C) | intestinal |
| | D) | none of the above |
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17 | |
Which of the following is necessary for the emulsification of fats? |
| | A) | bile |
| | B) | hydrochloric acid |
| | C) | chyme |
| | D) | bolus |
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18 | |
Digestion is the mechanical and chemical breakdown of food into smaller particles that the individual cells of an animal can absorb. |
| | A) | True |
| | B) | False |
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19 | |
Losses of biosynthetic abilities have marked much of animal evolution. |
| | A) | True |
| | B) | False |
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20 | |
Only a few protists and animals can absorb nutrients directly from their external environment. |
| | A) | True |
| | B) | False |
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21 | |
The evolution and structure of the digestive system in various invertebrates and vertebrates reflects their eating habits, their rate of metabolism, and their body size. |
| | A) | True |
| | B) | False |
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22 | |
Most digestion occurs in the ileal portion of the small intestine. |
| | A) | True |
| | B) | False |
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23 | |
The large intestine carries out many digestive and absorptive activities. |
| | A) | True |
| | B) | False |
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24 | |
The appendix represents the evolutionary remnant of a portion of the pancreas. |
| | A) | True |
| | B) | False |
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25 | |
A rabbit has a very small cecum. |
| | A) | True |
| | B) | False |
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