Chapter Questions
Which of the following is the ability of the digestive system to break down macromolecules into smaller subunits?a. peristalsisb. ingestionc. absorptiond. hydrolysise. elimination
The digestive system consists of a series of tissues surrounding a hollow space called thea. serosa.b. lumen.c. mucosa.d. muscularis.
Chemical and mechanical digestion begins in thea. stomach.b. pharynx.c. esophagus.d. mouth.
This accessory gland provides water, mucus, and enzymes to the mouth.a. salivary glandb. liverc. pharynxd. glottis
This structure blocks the opening to the respiratory system during swallowing.a. esophagusb. pharynxc. epiglottisd. salivary gland
Which of the following is incorrect regarding gastric juice?a. It is provided by the pancreas.b. It contains pepsin to digest protein.c. It has a pH of 2 due to hydrochloric acid.d. It is produced by the gastric glands.
Which of the following enzymes is matched to its correct nutrient?a. amylase- starchb. lipase- -fats and lipidsc. protease- proteinsd. All of these are correct.
Which of the following nutrients are loaded into chylomicrons and transported by the lymphatic system following digestion?a. carbohydratesb. fatsc. proteinsd. None of these are correct.
Bilea. is an important enzyme for the digestion of fats.b. cannot be stored.c. is made by the gallbladder.d. emulsifies fat.e. All of these are correct.
Which of the following is not a function of the liver in adults?a. produces bileb. detoxifies alcoholc. stores glucosed. produces ureae. makes red blood cells
This hormone causes the gallbladder to contract and the liver to increase its production of bilea. secretinb. pepsinc. $\mathrm{CCK}$d. gastrin
The large intestinea. digests all types of food.b. is the longest part of the intestinal tract.c. absorbs water.d. is connected to the stomach.e. is subject to hepatitis.
This organ may be part of the immune system and helps prevent infections in the large intestine.a. duodenumb. cecumc. rectumd. appendix
The presence of which of the following may be an indication of cancer?a. constipationb. bilirubin in the fecesc. polyps in the large intestined. hemorrhoids
The amino acids that must be consumed in the diet are called essential. Nonessential amino acidsa. can be produced by the body.b. are only needed occasionally.c. are stored in the body until needed.d. can only be found in the diet; the body cannot synthesize these amino acids.
A BMI of 26.7 indicates that a person isa. healthy.b. morbidly obese.c. overweight.d. obese.e. underweight.
The glycemic index is associated with which of the following classes of nutrients?a. fats and lipidsb. mineralsc. carbohydratesd. vitamins
This class of nutrients may be either fat soluble or water soluble.a. mineralsb. carbohydratesc. proteinsd. vitamins