Lecture 18, Ch. 41

Lecture 18, Ch. 41 - Lecture#18 Date • Chapter 41 ~...

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Unformatted text preview: Lecture #18 Date ______ • Chapter 41 ~ Animal Nutrition Nutritional requirements • Undernourishment : caloric deficiency • Overnourishment (obesity): excessive food intake • Malnourishment : essential nutrient deficiency • Essential nutrients : materials that must be obtained in preassembled form • Essential amino acids : the 8 amino acids that must be obtained in the diet • Essential fatty acids : unsaturated fatty acids • Vitamins : organic coenzymes • Minerals : inorganic cofactors Food types/feeding mechanisms • Opportunistic • Herbivore : eat autotrophs • Carnivore : eat other animals • Omnivore : both • Feeding Adaptations • Suspension-feeders : sift food from water (baleen whale) • Substrate-feeders : live in or on their food (leaf miner) (earthworm: deposit-feeder ) • Fluid-feeders : suck fluids from a host (mosquito) • Bulk-feeders : eat large pieces of food (most animals) Overview of food processing • 1-Ingestion : act of eating • 2-Digestion...
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Lecture 18, Ch. 41 - Lecture#18 Date • Chapter 41 ~...

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