Class #2: Food Composition and Nutrition Flashcards
What are the 6 elements making up living things?
CHOPNS
True or False: Micro nutrients are organic.
False, inorganic.
Define Specific Heat Capacity.
The amount of energy it takes to raise a given amount of material to a certain temperature.
True or False: Hard water has a high concentration of Na+
False. Hard water has a higher concentration of Ca and Mg, soft water has a higher concentration of Na
True or false: Water boils faster at higher altitudes.
True. Water boils at a lower temperature.
What is a dispersion?
A mixture containing particles dispersed in a continuous phase.
What are the three types of dispersion?
Solution, Colloidal, Coarse.
What determines how quickly food decays?
Water activity (aw) more water=quicker decay
True or false: Plants are the primary source of carbohydrates.
True, made in photosynthesis.
True or false: Maltose is glucose+fructose
False. Maltose is glucose+glucose
Where are ribose and arabinose found?
Ribose: Nucleosides and Vit B2, Arabinose: Part of plant structure.
What are oligosaccharides used for?
Bulking agents and fat replacers
Where are raffinose and stachyose (oligosaccharides) found?
Dried beans, they are not broken down well and contribute to gas.
What is the function of fructooligosaccharides?
Act as prebiotics-food for gut bacteria
What does glycogen turn into during slaughter?
Lactic Acid.
True or False: Insoluble fibre soaks up water like a sponge, therefore softening stool.
True