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Ch. 41 - Animal Nutrition
Campbell - Campbell Biology 11th Edition
Urry11th EditionCampbell BiologyISBN: 9789357423311Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoUrry 11th EditionCh. 41 - Animal NutritionProblema 3
Capitolo 41, Problema 3

Which of the following organs is incorrectly paired with its function?
a. Stomach—protein digestion
b. Large intestine—bile production
c. Small intestine—nutrient absorption
d. Pancreas—enzyme production

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1
Identify the primary function of each organ listed in the options.
Option a: The stomach is primarily responsible for the digestion of proteins. It secretes gastric juices, including pepsin, which breaks down proteins into smaller peptides.
Option b: The large intestine is mainly involved in water absorption and the formation of feces. It does not produce bile; bile is produced by the liver.
Option c: The small intestine is the main site for nutrient absorption. It absorbs nutrients from digested food into the bloodstream.
Option d: The pancreas produces enzymes that aid in the digestion of carbohydrates, proteins, and fats. It also produces insulin and glucagon for blood sugar regulation.

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Digestive System Functions

The digestive system is responsible for breaking down food into nutrients, which the body uses for energy, growth, and cell repair. Each organ within the system has specific functions, such as the stomach for protein digestion, the small intestine for nutrient absorption, and the pancreas for enzyme production. Understanding these functions is crucial for identifying any incorrect pairings.
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Digestion and Digestive Tracts

Role of the Large Intestine

The large intestine primarily absorbs water and electrolytes from indigestible food matter and compacts waste into feces. It does not produce bile; bile is produced by the liver and stored in the gallbladder. Recognizing the large intestine's role helps in identifying the incorrect pairing in the question.
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Large Intestine

Bile Production

Bile is a digestive fluid produced by the liver and stored in the gallbladder, not the large intestine. It aids in the digestion and absorption of fats in the small intestine. Understanding where bile is produced and its function is essential for correctly answering questions about digestive organ functions.
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Primary Production in Aquatic Ecosystems
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After surgical removal of the gallbladder, a person might need to limit his or her dietary intake of

a. Starch

b. Protein

c. Sugar

d. Fat

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Which of the following is not a major activity of the stomach?

a. Storage

b. HCl production

c. Nutrient absorption

d. Enzyme secretion

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If you put the following events in the order they occur in the human digestive system, the third event in the series would be

a. Cells in gastric pits secrete protons.

b. Pepsin activates pepsinogen.

c. HCl activates pepsinogen.

d. Partially digested food enters the small intestine.

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The mammalian trachea and esophagus both connect to the

a. Pharynx

b. Stomach

c. Large intestine

d. Rectum

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Fat digestion yields fatty acids and glycerol. Protein digestion yields amino acids. Both digestive processes

a. Occur inside cells in most animals

b. Add a water molecule to break bonds

c. Require a low pH resulting from HCl production

d. Consume ATP

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