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Food and digestion
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Which of the food tests NEED to be heated?
Benedicts reagent.
Which of the following foods would you expect to be positive for starch? Sweets, Cheese, Ham or potatoes?
Potatoes
Which of the food tests need heated?
Benedicts reagent
Define DIGESTION
Digestion is the breaking down of large insoluble molecules into small soluble substances.
Why is fibre important in our diets?
Healthy digestive system, bulk to faeces
Describe difference between starvation and malnutrition?
Starvation is lack of food, malnutrition is lack of the right foods.
why are fats needed in the body?
Insulation and protection of vital organs
Bread, cereal, oats, pasta are very high in
carbohydrates
Anaemia is caused by a lack of which mineral?
Iron
the colon is the scientific name for what?
Large intestine
the ileum is the scientific name for what?
Small intestine
After your food travels down the oesophagus, where does it go?
Stomach
Where is the first place in chemical digestion?
Mouth - starch begins to break down in the mouth due to the enzyme in your saliva (Amylase)
Why do we need iron in our bodies?
It produces the blood proteins
Rickets is caused by a lack of which vitamin
Vitamin D
Which vitamin do you need to be lacking to get scurvY?
Vitamin C
Describe one method that could be used to test for fats?
Grease on brown paper, or using ethanol
what is the colour change for benedicts solution?
Blue to brick red
What would i use to test for glucose?
Benedicts solution
What is the colour change for biuret solution?
Blue to purple
What would I use to test for protein?
Biruet reagent
Iodine turns what colour if starch is present?
Blue-Black
What would i use to test for starch?
Iodine