BIOL 1F90 Lecture Notes - Lecture 23: Miscibility, Hemoglobin, Gastrovascular Cavity
12 Jan 2016
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Document Summary
Omnivores eat both plant and animal material. Nutrition: process of consuming and using food and nutrients. Nutrient: any substance consumed by an animal that is needed for survival, growth, development, tissue repair, or reproduction. Organic nutrients required: carbohydrates, proteins lipids, nucleic acids, vitamins. Basic similarities in animal cells lead to basic similarities in nutrition. Different animal physiologies can have different nutritional demands. Ingested organic macromolecules are used for two general purposes. All animals require the same fundamental organic macromolecules. Certain compounds cannot be synthesized from any ingested or stored precursor molecule must be obtained in diet. 4 groups: essential amino acids, essential fatty acids, vitamins, minerals: essential amino acids. 8 required by many animals (-isoleucine, leucine, lysine, methionine, phenylalnine, threonine, tryptophan, and valine) Cannot be synthesized by animals cells; are not stored. Carnivores and omnivores readily obtain all 8 in meat. Most plants do not contain every essential amino acid in sufficient quantity.
