Functions of Water.

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Presentation transcript:

Functions of Water

Functions of Water Water has two functions in food: Heat medium Universal solvent B 3.01 -- Functions of Water

Heat Medium Water transfers heat to food Heat is transferred through: Steam (gas) Boiling (liquid) Heat is transferred through: Conduction -- rapid movement of molecules in food Convection -- circulation of hot and cold molecules Forced or natural Radiation B 3.01 -- Functions of Water

Universal Solvent Water is a universal solvent because it can dissolve many substances Types of water solutions include: Gas in water Liquid in water Solid in water Fats and oils do not dissolve in water B 3.01 -- Functions of Water

Universal Solvent Gas-in-Water Solutions Gas dissolved in water Carbon dioxide carbonated beverages Oxygen cold and hot water B 3.01 -- Functions of Water

Universal Solvent Liquid-in-Water Solutions Liquid other than water dissolved in water Vinegar Ethanol B 3.01 -- Functions of Water

Universal Solvent Solid-in-Water Solutions A solid substance dissolved in water Common solid-in-water solutions: Salt in water Sugar in water B 3.01 -- Functions of Water