Home economics revision

Peter Fitzroy
Flashcards by Peter Fitzroy, updated more than 1 year ago
Peter Fitzroy
Created by Peter Fitzroy over 5 years ago
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Flashcards on Home economics revision, created by Peter Fitzroy on 10/06/2015.

Resource summary

Question Answer
Protein functions Growth Repair Maintenance Healing Energy
How many essential amino acids are there 10
HBV proteins Contain all the essential amino acids
LBV proteins Are missing one or more of the essential amino acids
Protein complementing (define and example) Mixing LBV proteins together to give all the essential amino acids e.g. Baked beans on toast
Diet The food we eat everyday
Balanced diet Eating the right amount of nutrients and minerals and a variety of foods for our individual needs
Malnutrition Bad nutrition-eating too much or too little of one or more nutrients
Foods may contain natural or added: Flavourings Colourings Preservatives Enzymes Texture
Special diet Increase or decrease a nutrient or food e.g. low salt, weight loss and high fibre diets
Food provides: All of the materials(nutrients) and energy that the body needs for growth, maintenance, repair and to work properly
LBV protein examples (you must say at least 3) Cereals, pulses, beans, seeds, some nuts and meat alternatives e.g. Quorn
HBV protein examples (you must say at least 3) Meat, fish, eggs, milk, cheese, soya beans and quinoa
Deficiency of protein in children (say at least 3) Poor growth Slow healing Catch infections easily Fluid under skin (oedema) Thin, weak Cannot digest food properly Diarrhoea Hair thinning
Deficiency of protein in adults (say at least 3) Lose muscle and fat Internal organs weaken Dry hair and skin Oedema(fluid under skin)
Fat molecule composition one part glycerol and three parts fatty acids - a triglyceride
Saturated fatty acids Full of hydrogen
Unsaturated fatty acids Double bonds and so can take on more hydrogen
Monounsaturated fatty acids One double bond
Polyunsaturated fatty acids Two or more double bonds
Hydrogenation (define and give danger) Adding hydrogen to make a liquid oil become a solid fat Can result in the production or trans fats, which may be harmful to health
Functions of fat in the body (give at least 3) Provides energy Stored in adipose tissue cells Insulates body from cold Protects organs e.g. kidneys Protects skeleton Provides the fat soluble vitamins: A,D,E and K
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