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Related Flashcards
Cards In This Set
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The hydrogenation of fats leads to the formation of what?
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Trans fats
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Define non-milk extrinsic sugars and give an example
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Sugars not contained within the cell walls of food, excluding milk lactose. Example sucrose extracted for table sugar and used in cakes.
Fruit juice
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Explain the abbreviation HDL cholesterol and state its role
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High density lipoprotein. Removes excess cholesterol from the blood and body cells and sends it to the liver where it can be parytially excreted as bile. HDL is good because prevents atheroma.
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Name one disaccharide and state which monosaccharides it is form from
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Lactose = glucose + galactose
Sucrose = glucose + fructose
Maltose = glucose + glucose
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Name the monosaccharide sugars
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Glucose
Fructose (fruit sugar)
Galactose
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What are polyols and give examples
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Sugar alcohols...
Xylitol
Malitol
Sorbitol
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What are oligosaccharides and give examples
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3-9 sugar molecules linked together
Inulin (a prebiotic) FOS non digestible so feed good bactteria in gut
Raffinose and stachyose found in beans and legumes. Can't fully digest so the carb ferments by bacteria in gut.
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What are polysachharides and give examples
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More than 9 sugar molecules linked together
Amylose (long polymer of glucose) found in starchy foods (grains, root vegetables, legumes)
Non starch polysachharides
cellulose
Pectin; gel properties in water, soluble dietary fibre
apples
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Name two dietary components which facilitate iron absorption
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Meat (haem)
Vitamin C (ascorbic acid)
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Name two dietary components that inhibit calcium absorption
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Oxalic acid (this compounds apparently binds with calcium and is rejected from the body as calcium oxalates, an insoluble salt) found in spinach and swiss chard, rhubarb
Phytic acid
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According to maslow's hierarchy, what are the two most basic human needs?
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Survival first
Securtity second
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Define secondary socialisation
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Socialisation outside of the family unit; influences from school, friends, media. However when advice conflicts, law of primacy says primary socialisation will guide ones behaviour/choice about food.
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Cultural relativism means considering one's own food culture as superior to all others. True or false?
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Example is if you were raised to believe that dogs were pets, yet in China, a dog is also food. Someone who believes in cultural relativism would not judge the dog-eating as "right" or "wrong", because there isn't a "right" or "wrong". They believe that each culture must be understood with neutrality.
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Approximately how much nitrogen is lost in the faeces each day in a healthy adult consuming a typical UK diet?
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10-12%
12mg nitrogen based on a normal healthy adult losing 12g a day of nitrogen
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Name an equation which can be used to determine energy expenditure from oxygen uptake and carbon dioxide.
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Weir formula
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