- Join over 1.2 million students every month
- Accelerate your learning by 29%
- Unlimited access for just £4.99 per month
Nutrients in Food Lab Report
The first 200 words of this essay...
Nutrients in Food
Lab Report (C1)
Positive test - Tests that will determine if certain substances are present in many 'complex' foods:
Starch: Iodine turns blue black when added
Protein: Biuret test - If the foodstuff contains soluble protein, the reagent turn from light blue to purple
Fat: Reagent forms a white cloudy precipitate
Simple Sugars: Benedict's solution - when added, and once heated, Benedict's will turn dark orange-red
Below is the data collected; if a certain substance such as starch, protein, fat or sugars are present, then in the table, it will be marked positive (+ve), and will have a remark, 'yes', next to it. If a substance is not present, then it will be marked negative (-ve) with a remark of 'no.' Though in some cases, there will be a trace of some substances, meaning there was a slight formation of the precipitate or the substance was slightly present, in extremely small amounts. This, on the table will be marked as "-ve though a slight trace"
-ve though slight trace
Found what you're looking for?
- Start learning 29% faster today
- Over 150,000 essays available
- Just £4.99 a month
Not the one? We have 100's more
Living Things in their Environment (view all)
- Investigating the habitat of woodlice.
- An Investigation into a Woodlice's Preferred Choice of Envir...
- The importance uses of micro organisms.
- Australian Ectotherms & Endotherms
- Explain what is meant by thermal pollution and discuss the i...
- To deal with the problem of overpopulation caused by overbre...
- Is eating the best solution to deal with over-breeding speci...
- Where are all the bees?
- Dissecting an Owl Pellet Lab
- The aim is to record the data growth of Duckweed and see wha...
""Natalie. Criminology, Politics, Psychology and Economics. University Student.
""Salma Ahmed. Law and English. GCSE Student.