Fichas
IB Food Chemistry
Fichas del conjunto (13)
- 1Distinguish between a Food and a Nutrient.Food: Any substance intended for human consumption. Nutrients: Any substance obtained from food and used in the body to provide energy. They are proteins, fats and oils,carbohydrates, vitamins, minerals.
- 2Function of carbohydratesThey provide energy, store energy, give structure to plants, and are a precursor for other molecules
- 3Functions of ProteinsBiological catalysts (enzymes), helping maintaining structure, an energy source, hormones, transport (haemoglobin)
- 4Function of LipidsEnergy storage, insulation and protection of organs, steroid hormones, structure of cell membrane
- 5Primary sources of Vitamins and mineralsFruit and Vegetables
- 6Functions of VitaminsVit A: helping vision
Vit D: Bone strength - 7Chemical composition of LipidsComposed of an ester molecule made of a glycerol and three fatty acids.
- 8Chemical composition of carbohydratesMonosaccarides: Aldehydes or ketones with 1 carbonyl group and at least 2 hydroxyl groups. Ring structure present in solution. E.g. Glucose, fructose
Disaccharaides: formed in the condensation of two or more monosaccharaides. E.g. Maltose - 9Chemical composition of proteins (Primary)Amino acids joined in a straight chain
- 10Chemical composition of proteins (Secondary)Straight chained protein molecule that has folded. Intermolecular hydrogen bonds holds the folds in place
- 11Chemical composition of proteins (tertiary)3D structure of a coiled and folded protein molecule held in place by variety of different intermolecular bonds
- 12Chemical composition of proteins (quaternary)Separate chains of protein molecules
- 13Describe the differences in structure between saturated and unsaturated fatty acids
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- IB chemistry. paper 3 topic F.
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- mollywilding33
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