Exam 3: The Human Body: A Nutrition Perspective

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Match the following with the terms below
Uptake of nutrients in which liquids are engulfed by the absorptive cell; requires energy
Active absorption
Uptake of nutrients in which solid particles are engulfed by the absorptive cell; requires energy
Phagocytosis
Movement of nutrients down a concentration gradient; requires a carrier, but does not require energy
Passive absorption
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Uptake of nutrients in which liquids are engulfed by the absorptive cell; requires energy
Active absorption
Uptake of nutrients in which solid particles are engulfed by the absorptive cell; requires energy
Phagocytosis
Movement of nutrients down a concentration gradient; requires a carrier, but does not require energy
Passive absorption
Movement of nutrients down a concentration gradient; requires no carrier and no energy
Facilitated diffusion
Movement of nutrients against a concentration gradient; requires a carrier and energy
Pinocytosis
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The villi of the small intestine

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Which of the following is not a function of the urinary system?

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The muscular contractions that move food through the digestive tract are called

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Match the following with the terms below
Fingerlike projections in the small intestine that participate in digestion and absorption of nutrients
Esophageal sphincter
A compound that speeds the rate of chemical processes but is not altered by the process
Enzyme
A substance released into the small intestine to aid fat absorption
Villi
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Fingerlike projections in the small intestine that participate in digestion and absorption of nutrients
Esophageal sphincter
A compound that speeds the rate of chemical processes but is not altered by the process
Enzyme
A substance released into the small intestine to aid fat absorption
Villi
A mixture of stomach secretions and partially digested food
Chyme
A muscular valve that controls the flow of food matter into the stomach
Bile
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Absorption of nutrients by intestinal cells occurs by all of the following mechanisms except

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Match the following their functions in the cell with organelles.
Digests foreign proteins and worn-out cell components.
Peroxisome
Destroys toxic products within the cell
Ribosome
Involved in protein and lipid synthesis, detoxification of harmful substances, and calcium storage in the cell
Lysosome
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Digests foreign proteins and worn-out cell components.
Peroxisome
Destroys toxic products within the cell
Ribosome
Involved in protein and lipid synthesis, detoxification of harmful substances, and calcium storage in the cell
Lysosome
Mediates the linking together of amino acids to form proteins
Endoplasmic reticulum
Packages newly synthesized proteins for export from the cell
Golgi complex
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Which of the following is true regarding bile?

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What sphincter separates the small intestine from the large intestine?

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Which of the following,upon digestion,is not normally absorbed directly into the bloodstream?

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Which of the following therapies is appropriate for treatment of occasional heartburn?

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The ______ system is assisted by the lymphatic system and the physical barriers of the skin and gastrointestinal tract.

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