01:119:116 Lecture Notes - Lecture 23: Neural Tube Defect, Gastrointestinal Tract, Calorie
15 Mar 2016
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Animals heterotrophs: herbivores producers, carnivores - meat, omnivores - plants and animals. Right amount of food and mixture (cid:1) Calories e value (1 kilocalorie = 1000 calories) Amount of heat required to raise temperature of 1 kg of water by 1 degree c: carbohydrates. 1 g of carbs = 4 kilocalories (c: proteins. 1 g = 4 kilocalories: lipids. Organic building blocks for macromolecules: need source of c. Ex: carbs: need source of n. Essential nutrients: cannot be made by body. Essential amino acids: 20 aa that are needed to make proteins. Animal sources - meat, eggs, cheese: incomplete protein. Essential fatty acids: humans can synthesize many fatty acids. Lack enzymes to make double bonds in same fatty acids: essential fatty acids. Required by an enzyme for proper functioning: water-soluble. Ex: b3 (niacin) component of nad- and nadp- When cells use o2: produce reaction molecules. Salts dissolved in food and water: major minerals. Principle positive in cells and something fluid.
