1) In what process do animals take in food that provides energy and nutrients? a) assimilation b) digestion c) excretion d) ingestion 2) The process in which digested foods are distributed into different part of the body cells are ______. a) assimilation b) digestion c) excretion d) ingestion 3) What is the process of turning food into smaller molecules with the aid of enzymes? a) churning b) mastication c) chemical digestion d) mechanical digestion 4) Where does the final stage in digestion of food happen? a) liver b) mouth c) small intestine d) large intestine 5) What type of enzyme present in saliva helps break down starch? a) amylase b) lactase c) lipase d) maltase 6) Which of the following breaks down food into tinier pieces to begin mechanical digestion? a) esophagus b) stomach c) teeth d) tongue 7) What organ system is responsible for breaking down of large molecules into smaller molecules and absorption of organic compounds needed by the body? a) circulatory system b) digestive system c) nervous system d) respiratory system 8) What is the main function of the large intestine? a) It breaks down hemoglobin. b) It secretes digestive enzymes. c) It regulates the release of bile. d) It reabsorbs water from chyme 9) What do you call the wavelike contraction of the smooth muscles of digestive tract pushes food in small sections through the gastro-intestinal tube? a) mixing movement b) parietal movement c) contractile movement d) peristaltic movement 10) If the liver is severely damaged, metabolism of which nutrients would be most affected? a) carbohydrates b) lipids c) proteins d) all of the above 11) What is the most essential function of the intestinal villi? a) pushes the fecal matter into the rectum b) increases surface area for nutrient absorption c) secretes serous fluid to decrease friction among the organs d) secretes mucous to facilitate the movement of chyme via the alimentary canal 12) Which of the following shows the correct sequence of the processes involved in the human digestive system? a) assimilation, absorption, ingestion, digestion, and egestion b) digestion, ingestion, assimilation, egestion and absorption c) egestion, absorption, digestion, assimilation and ingestion d) ingestion, digestion, absorption, assimilation and egestion 13) What is the term for the food that is chewed and mixed with saliva that turns into a moist ball? a) bolus b) chyme c) feces d) gastric juice 14) It is the process by which the nutrients from the digested food move into the blood vessels passing through the lining of the small intestine. a) assimilation b) digestion c) egestion d) elimination 15) Which of these substances is an enzyme that digests protein in the stomach? a) amylase b) hydrochloric acid c) pepsin d) saliva

The Digestive System Quiz Show

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