DIGESTION AND ABSORPTION TEST

1. Where in the human body is lipase produced? A. Stomach B. Pancreas C. Gall bladder D. Liver 2. What are these structures? A. Fatty acids in the small intestine B. Bacteria in the large intestine C. Villi in the small intestine D. Feces egested from the large intestine 3. Which organ in the human body secretes lipase, amylase and protease? A. Pancreas B. Liver C. Gall bladder D. Small intestine 4. The diagram shows the layers of the tissues in a transverse section of the human small intestine. 5. Which is the layer labelled with the letter X? A. Mucosa B. Circular muscle C. Epithelium D. Longitudinal muscle 6. Where does the digestion of polypeptides start in humans? A. Mouth B. Esophagus C. Stomach D. Small intestine 7. What are functions of the stomach, small intestine and large intestine? 8. What happens to starch in the small intestine? A. Endopeptidase secreted by the liver digests starch to enable absorption by the villi. B. Contraction of intestinal muscle mixes starch with enzymes to accelerate its conversion into amylose. C. Glycogen secreted by the pancreas hydrolyses starch into glucose, which is eventually transported to the liver. D. Amylase secreted by the pancreas digests starch to enable absorption by the villi. 9. The diagram shows the human digestive system. Which organ is responsible for the majority of the absorption of digested food? (C in the small intestine)