Chapter 36

A digestive system functions in _____. a. secreting enzymes c. eliminating wastes b. absorbing compounds \(\mathrm{d}\). all of the above

Protein digestion begins in the _____. a. mouth c. small intestine b. stomach d. large intestine

Most nutrients are absorbed in the _____. a. mouth c. small intestine b. stomach d. large intestine

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

Monosaccharides and amino acids absorbed from the gut enter ______. a. blood vessels c. fat droplets b. lymph vessels d. both \(b\) and \(c\)

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

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

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

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

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

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

_____ are a good source of soluble fiber. a. Dairy products c. Whole grains b. Lean meats d. Sodas

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

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

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 instestine d. absorbs most nutrients e. stores feces f. connects pharynx to stomach g. stores, secretes bile h. secretes gastric fluid