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food and diet
| Question | Answer |
|---|---|
| what is water needed for? | use as a solvent and to transport substances |
| food is needed for..... | energy and growth materail |
| food is made up of... | chemicals called nutrients |
| the main nutrients are: | charbohydrates, protein, fat, vitamins, minerals |
| what chemical do you use to test for the presence of startch | iodine solution |
| what is the colour change if starch is present | brown/yellow to blue/black |
| what chemical do you use to test for the presence of glucose(reducing sugar) | Benedicts solution and heat |
| what is the colour change if glucose is present | blue to red |
| what chemical do you use to test for the presence of protein | sodium hydroxide solution + copper sulfate solution |
| what is the color change is protein is present? | blue to purple |
| what chemical do you use to test for the presence of fat | rub butter on brown paper |
| what color change is there if fat is present | translucent spots appear. |
| what is energy in food measured in | KJ kilojoules |
| food gives out ________ when it is _______ | energy, burned |
| a balanced diet is one that containes | carbohydrates (including fibre), fats, proteins, vitamins, minerals and water |
| a balanced diet depends on the persons | age, sex and activity level |
Created by:
rbowen2018
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