11. The ileocecal valve connects

A. colon to rectum.

B. small intestine to large intestine.

C. stomach to small intestine.

D. esophagus to stomach.

12. What is primarily absorbed in the large intestine?

A. lipids

B. vitamins

C. fiber

D. water and electrolytes

13. Intestinal gas is a result of

A. bacterial fermentation.

B. the action of bile.

C. stomach acid fermentation.

D. too much fat in the diet.

14. Accessory organs involved in digestion include the

A. liver, gallbladder, and kidneys.

B. liver, trachea, and pancreas.

C. liver, gallbladder, and pancreas.

D. heart, gallbladder, and pancreas.

15. Which of the following statements is true about the liver?

A. The liver removes toxins.

B. The liver manufactures bile.

C. The liver is the site for drug and alcohol metabolism.

D. All of the above are true of the liver.

16. Peristalsis is a form of

A. mechanical digestion.

B. enzymatic digestion.

C. chemical digestion.

D. none of the above

17. Peristalsis and segmentation both occur as a result of ________ contractions.

A. voluntary

B. stomach

C. esophageal

D. muscular

18. Where do both peristalsis and segmentation occur?

A. esophagus

B. stomach

C. small intestine

D. large intestine

19. The primary chemical reaction during enzymatic digestion is

A. electrolysis.

B. hydrolysis.

C. lipolysis.

D. condensation.

20. The substance or compound that an enzyme has specificity for is called the

A. product.

B. inhibitor.

C. catalyst.

D. substrate.