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Description
Flashcards by evie.daines, updated more than 1 year ago
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Created by evie.daines
over 10 years ago
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| Question | Answer |
| What is needed for a balanced diet? | Cereals (at least 5 portions) Fruit and Vegetables (at least 5 portions) Dairy (3 or 3 portions) Sugary and Fatty foods (small amounts) Meat, fish and alternatives (2 or 3 portions) |
| What can an unhealthy diet lead to? | Obesity strokes high blood pressure coronary heart disease cancer of the colon tooth decay |
| Function of Proteins | For growth and repair of cells. During digestion proteins are broken down into amino acids. |
| Proteins in the body | there are 20 naturally occurring amino acids in the body. these can be joined together to form proteins. They make up: muscles, hormones,enzymes, nails, antibodies and haemoglobin The body can make 11 of these amino acids and the rest are required from food. |
| Sources of proteins | mainly found in animal and soya (high biological value) Other plant sources (low biological value) ANIMAL INCLUDES DAIRY PRODUCTS |
| Alternative Proteins | Alternative proteins are used when: People do want to eat animals sources because of moral, religious or ethical beliefs. Conscious of healthy eating. want a more varied diet. |
| Alternative protein nutritive value | High in protein low in fat enriched with vitamins and minerals similar nutritional value to meats |
| Properties of Alternative proteins | Versatile- can be brought in different forms. bland- can be flavoured easily colourless- colour can be added during manufacturing easy to store |
| Ethical considerations of meat alternatives | They can be produced organically They are made in controlled environments keeping pollution to a minimum They are cheaper and quicker to produce than actual meat they can be stored easily because they're dry products |
| FATS | ENERGY: stored in the body until it's needed when energy is needed, fat already in the body is used up PROTECTION: fats surrounds vital organs and it is under our skin and helps us to keep warm TASTE: used to add flavour and colour to foods It makes us feel full because it is slow to digest VITAMINS: provides the body with fat soluble vitamins: ADEK |
| Types of Fat | Vegetable fats: Seeds and nuts Animal fats: lards/butters, meat, cream, eggs, fish |
| Functions of Fat | Frying Enriching Shortening Emulsifying moistening colouring creaming |
| Saturated and Polyunsaturated | Saturated fats are from animals. they increase cholesterol and lead to diseases mainly with the heart. polyunsaturated fats are more preferable in the diet. these come from oils and seeds |
| Functions of Carbohydrates | Provide the body with energy and aid growth and repair. |
| Types of carbohydrates | Starch: polysaccharides (BREAD) Sugar: monosaccharides (sucrose and fructose) also disaccharides (lactose and sucrose) NSP: Oats, bananas, fibrous products |
| Conversion of carbohydrates into energy | Sugars are absorbed quickly in the body. they provide instant energy. Starches are converted into energy more slowly. they must first be broken down into sugars during digestion. |
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