KEY Worksheet Topic # 3045 Digestion Adapted by: Tracey Hoffman Source: Animal Science Biology & Technology, IPP 1. What are the six essential nutrients in the diets of animals? Water, protein, carbohydrates, fats, vitamins, minerals. 2. True or False. Water accounts for 20 percent of total body weight. False (40-80%) 3. Protein consists of nitrogen containing building blocks called __________________. Amino acids 4. Give two examples of simple carbohydrates. Sugars and starches 5. List the fat-soluble vitamins. A, D, E, K 6. Which vitamin helps to regulate blood clotting? Vitamin K 7. Are chromium and cobalt macro or micro/minerals? Micominerals 8. Food moves through the esophagus by involuntary muscle contractions called ________________. Peristalsis. 9. Which part of the poultry digestive tract grinds food? Gizzard. 10. Name three different forages. Hay, pasture grasses and legumes, silage, etc. 11. What are the four parts of a ruminant stomach? Rumen, reticulum, omasum, abomasum. 12. What organism digests cellulose in a ruminant stomach? Bacteria 13. Describe a symbiotic relationship. Mutually beneficial 14. Compare the function of a horse’s cecum to a cow’s rumen. Both contain bacteria that digest complex carbohydrates. 15. Contrast the use of microbial protein in cattle and horses. Cattle absorb microbial protein in the small intestine while it is lost in the feces of horses.