BIOLOGY 225 Lecture Notes - Lecture 28: Specific Dynamic Action, Vitamin A Deficiency, Prenatal Vitamins
Document Summary
All animals eat other organisms dead or alive, whole or by the piece (including parasites). Energy content of diet must match the metabolic demands of the animal. Energy content of a gram of a specific macromolecule. Energy is lost in feces or urine. Some energy is spent digesting the food. Specific dynamic action (sda) or heat increment. Can be converted to atp power living processes. Animals need source of organic carbon and organic nitrogen to make their own organic molecules. Most animals need 8 amino acids in their diet. Protein deficiency: most common type of malnutrition. Diet with insufficient amt of 1 or more amino acids. Provide all essential amino acids in proper proportions. Deficient in one or more essential amino acids. Don"t want to feed your cat your dog"s food. Animals can make almost all fatty acids from acetyl coa. Animals cannot produce sufficient amounts of omega-3 (w 3) or omega-6 (w 6) fatty acids.
