Animal Nutrition I STUDY GUIDE

Animal Nutrition I - Animal Nutrition I 1 What is the difference between undernourishment and malnourishment Can a person be both obese and

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Animal Nutrition I. 1. What is the difference between undernourishment and malnourishment? Can a person be both obese and malnourished at the same time? What are some of the risks of obesity? a. Undernourishment- a diet that is chronically deficient in calories b. Malnourishment- referring to an animal whose diet is missing one or more essential nutrients 2. What is the difference between an essential nutrient and a nonessential nutrient? What are the four classes of essential nutrients? a. Essential nutrient- materials that must be obtained in preassembled form because the animal’s cells cannot make them from any raw material. 3. What are the two categories of vitamins? Which group is most easily stored in the body? What is the most common function of vitamins? 4. Vitamin C is necessary for the formation of collagen. How does a vitamin C deficit lead to the symptoms of scurvy? What are the diseases arising from deficiencies of vitamin B1 and Vitamin D? What are the symptoms of these diseases? 5. Define digestion and describe why it is a necessary process a. 2 nd stage process of breaking food molecules down into molecules small enough for the body to absorb i. Digestion is necessary for the fuel of ATP production 6. Intracellular digestion- the joining of food vacuoles and lysosomes to allow chemical digestion to occur with the cytoplasm of a cell a. Extracellular digestion- the breakdown of food outside the cell. i. So intracellular means inside cell, extracellular means outside the cell. 7. Explain why intracellular digestion must be sequestered in a food vacuole, and give examples of organisms which digest their food in vacuoles. a. Intracellular digestion must be sequestered within a food vacuole so the food can mix with the enzymes, allowing digestion to occur safely within a compartment that is enclosed by a protective membrane (SAFE DIGESTION)
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This note was uploaded on 05/27/2008 for the course BIOLOGY 107 taught by Professor Dr.abbott during the Fall '08 term at UConn.

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Animal Nutrition I - Animal Nutrition I 1 What is the difference between undernourishment and malnourishment Can a person be both obese and

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