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Term
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Definition
| breaking down of food into molecules small enough for the body to absorb. |
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| What happens to nutrient macromolecules in an animal's digestive tract? |
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Definition
| Nutrient macromolecules are digested into monomers before absorption. |
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| Through digestion, polysaccharides are broken down into |
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| The main function of an earthworm's gizzard is to |
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| An animal digestive tract that consists of two openings (a mouth and anus) is called... |
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| What organisms has a gastrovascular cavity? |
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Definition
| Hydra,jelly fish (cnidarians), flatworms |
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Term
| Digestion takes place in specialized compartments for the following reasons... |
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Definition
-the environment of digestion must favor the action of digestive enzymes.
-the animal's body must be protected from its own digestive enzymes.
-specialization of the sites of digestion promotes efficiency. |
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Term
| Lists the order of the parts of the human digestive system, from first to last contact with food matter. |
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Definition
| oral cavity, pharynx, esophagus, stomach, small intestine, large intestine |
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Definition
| Smooth muscle propels food through the alimentary canal by a process called |
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| Smooth muscle propels food through the alimentary canal by a process called |
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Definition
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| Regulation of the passage of food from the stomach is accomplished by |
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| Human saliva performs all of the following functions.... |
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Definition
-hydrolyzing starch.
-neutralizing food acids.
-controlling bacterial populations. |
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Term
| The digestion of carbohydrates begins in the mouth. What is the name given to the starch-digesting enzyme secreted by salivary glands? |
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Definition
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Definition
| What is the name of the starch-digesting enzyme secreted by salivary glands? |
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Term
| flap of cartilage that flips down to cover the entry to the trachea during swallowing. |
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Definition
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Definition
| flap of cartilage that flips down to cover the entry to the trachea during swallowing. |
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| The secretory parietal cells of the stomach are responsible for producing |
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Definition
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| The stomach mixes food with secretions of the stomach wall to form |
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Definition
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Definition
| The stomach mixes food with secretions of the stomach wall to form |
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| In the digestive system, most nutrient absorption occurs in the |
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Definition
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| Epithelial cells lining the intestine have surface projections that increase nutrient absorption. These projections are called |
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Definition
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Definition
| Epithelial cells lining the intestine have surface projections that increase nutrient absorption. These projections are called |
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| What is the main digestive function of the pancreas? |
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Definition
| to produce digestive enzymes and an alkaline solution |
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Term
| to produce digestive enzymes and an alkaline solution |
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Definition
| What is main digestive function of the pancreas? |
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Term
| Which of the following is important in the digestion of lipids? |
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Definition
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Definition
| important in the digestion of lipids? |
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| Which of the following nutrients is digested only after it reaches the small intestine? |
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Definition
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Definition
| this nutrients is digested only after it reaches the small intestine |
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| Nutrients absorbed by the intestines move directly to the liver, which |
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Definition
| converts excess glucose to glycogen. |
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Term
| Absorption of water is a major function of the |
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Definition
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| Which of the following digestive system structures is greatly expanded in size in koalas, resulting in a very large surface area for prokaryotes to digest plant material? |
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Definition
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Term
| All animals must obtain ________ from outside sources. |
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Definition
| fuel to power body activities |
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Term
| The rate of energy consumption by the body is called |
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Definition
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Definition
| The rate of energy consumption by the body is called |
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Term
| Which of the following vitamins is fat-soluble and consequently, can be stored in body fat? |
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Definition
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Term
| Which of the following choices correctly pairs a mineral with one of its major functions in the body? |
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Definition
| sodium = maintaining water balance in cells |
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Term
| The minimal amount of nutrients needed every day by healthy people to prevent nutrient deficiencies is called the |
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Definition
| RDA, Recommended Dietary Allowances. |
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| RDA, Recommended Dietary Allowances. |
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Definition
| The minimal amount of nutrients needed every day by healthy people to prevent nutrient deficiencies |
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