Animal Digestion

3. process of simple molecules passing through cell membranes of the lining in the small intestine into the blood
7. the building blocks of protein that contain carbon, hydrogen, oxygen, and nitrogen, and they are essential for growth and maintenance of cells
10. single-celled organisms that are found in the rumen and reticulum and aid in digestion
12. have a developed cecum which contains bacteria to break down the roughage consumed
13. process of grasping feed with lips, tongue, and/or teeth
14. liquid that contains water, mucus, hydrochloric acid, and digestive enzymes that are secreted by glands
15. process of forcing feed back up the esophagus to be chewed further to increase digestibility of roughages; occurs only in ruminant animals; also known as “chewing cud”

1. the process of breaking feed down into simple substances that can be absorbed by the body
2. small mass of feed once swallowed in animals
4. animals that have stomachs that are divided into multiple chambers and digest large amounts of roughages compared to nonruminants
5. small finger-like projections in the intestinal wall that increase the surface area and aid in digestive absorption
6. partially digested feed that is acidic, semifluid, gray, and pulpy that is produced in the stomach and sent to the small intestine
8. involuntary muscular contractions that create wave-like movements to move canal contents
9. animals that possess a single-compartment stomach
11. organic catalyst substances that speed up the digestive process