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45 Cards in this Set
- Front
- Back
2 types of Carbohydrate |
1. Sugars 2. Polysaccharides |
|
Sources of Sugars |
1. Sweets 2. Cakes |
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Sources of Polysaccharides |
1. Bread 2. Rice 3. Pasta 4. Cereals 5. Potatoes |
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Uses of Sugars |
provide instant energy |
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Uses of Polysaccharides |
1. Provide instant energy 2. Energy storage (glycogen) |
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Sources of Fat |
1. Butter 2. Cooking Oil 3. Cream 4. Red meat (e.g. beef) |
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Uses of Fat |
1. Energy storage 2. Making cell membranes |
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Sources of Protein |
1. Meat 2. Eggs 3. Fish 4. Nuts 5. Peas |
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Uses of Protein |
Growth and repair (making new cells) |
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3 types of mineral salts |
1. Calcium 2. Iron 3. Sodium |
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Sources of Calcium |
Milk |
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Sources of Iron |
Red Meat |
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Sources of Sodium |
1. Salt 2. Processed foods |
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Uses of Calcium |
Strengthens bones, nails and teeth |
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Uses of Iron |
Red Blood Cells |
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Uses of Sodium |
Water balance in cells |
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3 Vitamin A sources |
1. Fish 2. Oils 3. Butter |
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3 Vitamin B sources |
1. Liver 2. Cereals 3. Meat |
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2 Vitamin C sources |
1. Fresh Fruit 2. Vegetables |
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2 Vitamin D sources |
1. Dairy Products 2. Fatty Fish |
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Vitamin A Uses |
Aids night vision |
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Vitamin B Uses |
Chemical reactions in respiration |
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Vitamin C Uses |
Healthy skin and gums |
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Vitamin D Uses |
Absorption and use of Calcium for bones and teeth |
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3 Fibre Sources |
1. Cereals 2. Vegetables 3. Fruit |
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Fibre Uses |
Keeps food flowing smoothly in digestive system |
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2 Water Sources |
1. Drinks 2. Soggy foods |
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Water Uses |
Dissolves chemicals in cells or tissue fluids |
|
Test for Sugar (name) |
Benedict's Test |
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Test for Sugar (method - 3 steps) |
3 Steps: 1. Dissolve food in 1cm3 water 2. Add 2cm3 Benedict's Solution 3. Boil, using a water bath, for 1 minute Result: Blue solution becomes red (if xxx detected) |
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Sucrose (type of sugar) |
A sugar that does not turn Benedict's solution red |
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Test for Starch (name) |
Iodine Test |
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Test for Starch (method) |
Method: Add several drops of solution. Result: Straw colour turns to blue/black (if xxx detected) |
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Test for Fat (name) |
Emulsion Test |
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Test for Fat (method) |
Method (5 steps): 1. Cut food into thin shavings, without water 2. Add 5cm3 of Ethanol 3. Shake well and leave to settle 4. Half fill second test tube with water 5. Carefully add drops of Ethanol solution to the water Result: Water becomes cloudy (if xxx is detected) |
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Test for Protein (name) |
Biuret Test |
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Test for Protein (method) |
Method (3 steps): 1. Add 1cm3 of dilute Sodium Hydroxide 2. Add 3 drops of 1% Copper Sulphate solution 3. Shake and observe Result: Pale Blue colour turns to Violet (if xxx detected) |
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xxx give twice as much energy as carbohydrates |
xxx = Fats |
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Starch and sugar are xxx |
xxx = Carbohydrates |
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xxx and yyy can be stored in the body |
xxx = Fats yyy = Carbohydrates (Glycogen) |
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Too much fat in the diet leads to xxx |
xxx = Heart Disease |
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Too much energy rich food makes us xxx and causes yyy |
xxx = Overweight yyy = Heart Disease |
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Proteins are used for xxx and yyy. Proteins zzz |
xxx = growth yyy = repair of cells zzz = cannot be stored |
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xxx and yyy are need to help zzz in the body |
xxx = Vitamins yyy = minerals zzz = special chemical reactions |
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A xxx contains all the yyy in the zzz |
xxx = balanced diet yyy = nutrients zzz = amounts needed by the body |