Chapter 36

Flatworms digest food________. a. inside their cells b. in a gizzard c. in a gastrovascular cavity d. in a complete digestive tract

Chemical digestion of protein begins in the human________. a. mouth b. stomach c. small intestine d. large intestine

In humans, most nutrients are absorbed from the________. a. mouth b. stomach c. small intestine d. large intestine

Bile has a role in________ digestion and absorption. Bile has a role in________ digestion and absorption. a. carbohydrate b. fat c. protein d. amino acid

Monosaccharides and amino acids absorbed from the small intestine enter________. a. blood vessels b. lymph vessels c. the rectum d. the large intestine

Bacteria in the ________ make essential vitamins. a. stomach b. small intestine c. large intestine d. esophagus

The \(\mathrm{pH}\) is lowest in the ________. a. stomach b. small intestine c. large intestine d. esophagus

Most water that enters the digestive tract is absorbed across the lining of the________. a. stomach b. small intestine c. large intestine d. esophagus

________is the mineral most often deficient in the diet. a. Potassium b. Chlorine c. Sodium d. Iron

Blood that flows through capillaries in the small intestine flows next through vessels in the ________. a. stomach b. heart c. pancreas d. liver

Tiny filaments called________ increase the surface area of a brush border cell in the lining of the small intestine. a. villi b. cilia c. microvilli d. flagella

________are a good source of soluble fiber. a. Lean meats b. Dairy products c. Whole grains d. Vegetable oils

Basal metabolic rate increases with________. a. age b. lean body mass c. a decrease in thyroid hormone d. all of the above

Which of the following vitamins is water soluble? a. vitamin A b. vitamin D c. vitamin \(C\) d. vitamin K

Match each organ with its function. ________gallbladder ________colon ________liver ________small intestine ________stomach ________pancreas ________esophagus ________rectum a. makes bile b. compacts undigested residues c. secretes digestive enzymes into the small intestine d. absorbs most nutrients e. stores feces f. connects pharynx to stomach g. stores, secretes bile h. secretes gastric fluid