Week 8, Lecture 1, Nutrition

Week 8, Lecture 1, Nutrition - Nutrition in animals...

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Nutrition in animals Why? -Ma intenance -Growth -Reproduct ion Types of food - Carbohydrates -Prote ins - Lipids Essential Nutrients All nutrients are “essential” for life but… Essential nutrients - essential in the diet in a very specific chemical form because the body cannot manufacture them in proper form. Ten of twenty amino acids Some fatty acids (linoleic acid - cell membranes) Vitamins and minerals How abundant are essential nutrients in the environment? Type of Diet Phagocytotic (Amoeba) Filter feeders (Oyster) Deposit feeders Substrate feeders Saprophagic (Fungi) Type of Diet Parasitic (Tapeworm) Herbivorous (Deer) Carnivorous (Lion) Omnivorous (Pig) Fluid-feeders Make their living sucking nutrient-rich fluids from a living host and are considered parasites. Mosquitoes and leaches suck blood from animals. Aphids tap the phloem sap of plants. Hummingbirds and bees are fluid-feeders that
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This note was uploaded on 04/18/2010 for the course BIOLOGY 1223 taught by Professor Gardiner/lajoie during the Fall '09 term at UWO.

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Week 8, Lecture 1, Nutrition - Nutrition in animals...

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