Samuel Marsh
Mind Map by Samuel Marsh, updated more than 1 year ago
Samuel Marsh
Created by Samuel Marsh almost 7 years ago


GCSE Home Economics Mind Map on Nutrients, created by Samuel Marsh on 04/29/2013.

Resource summary

1 Protein
1.1 Protein molecule made of amino acids
1.2 Types of protein
1.2.1 High biological value (HBV) Examples Meat Soya beans Milk Proteins that contain all the essential amino acids
1.2.2 Low biological value (LBV) Examples Cereals e.g. wheat Pulses Beans Proteins that are missing one or more of the essential amino acids.
1.3 Deficiency
1.3.1 Adults Lose muscle, fat Internal organs weaken Dry hair and skin
1.3.2 Children Poor growth Slow healing Catch infections easily Thin, weak Hair thinning
1.4 Function
1.4.1 Growth
1.4.2 Maintenance
1.4.3 Repair and healing
1.4.4 Energy
2 Fat
2.1 Differnt types
2.1.1 Oil which is liquid at room temperature
2.1.2 Fat which is solid at room temperature
2.2 What are they made up of?
2.2.1 One part glycerol
2.2.2 Three parts fatty acids - a trigyceride
2.3 Different types of fat
2.3.1 Saturated Fatty acids are full of hydrogen
2.3.2 Unsaturated Fatty acids have double bonds and can take more hydrogen
2.3.3 Monounsaturated Fatty acids have one double bond
2.3.4 Polyunsaturated Fatty acids have two or more double bonds
2.3.5 Hydrogenated Means adding hydrogen to make a liquid oil to become solid fat Can make trans fats, which may be harmful to health
2.4 Function in the body
2.4.1 Provides energy
2.4.2 Stored in adipose tissue cells
2.4.3 Insulates body from cold
2.4.4 Protects vital organs (e.g. kidneys) and skeleton
2.4.5 Provides Vitamins Vitamin A Vitamin D Vitamin E Vitamin K
2.5 Sources
2.5.1 Visible fat Butter Meat Margarine
2.5.2 Invisible fat Cakes Cheese Pastries
2.6 Deficiency
2.6.1 Not enough Deficiency of vitamins A, D, E and K Not enough essential fatty acids for growth of body tissue.
2.6.2 Too much If the energy is not used up in physical activity it will be stored as adipose tissue Weight gain Fat can build up in liver and cause health problems
3 Carbohydrates
3.1 Types of Carbohydrates
3.1.1 Sugar Simple sugars (Monosaccharids) Fructose Fruit Plant juics Honey Glucose Vegetables Ripe fruits Sugar used in cooking Galactose Milk Disaccharides Sucrose (Glucose and fructose) Sugar (Caster, granulated, brown) Fruit and vegetables Lactose (Glucose and galactose) Milk Milk products Maltose (Glucose and fructose) Cereals e.g. Barley Malted biscuits Milk drinks
3.1.2 Complex carbohydrates (Polysaccharides) Starch Root vegetables Cereal products e.g. bread Cereals e.g. wheat NSP Wholegrain cereal foods and products Helps get rid of solid waste Pectin Fruits e.g. plums, apricots, apples Dextrin Toasted bread Pastries Glycogen Formed in the body Stored in the liver and muscles Made of long chains of glucose units joined together in different ways
3.2 Deficiency
3.2.1 Not enough Low blood glucose levels Weight loss Athletes to 'hit
3.2.2 Too much Provides more energy than you use up in physical activity. This will be stored in adipose tissue and leads to weight gain
3.3 Made by plants during photosynthesis
3.4 The main source of energy
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