Food Tests L/O ;- To know how to test for starch, sugars, proteins and fats.

Slides:



Advertisements
Similar presentations
To visualize diffusion of molecules across a semipermeable membrane To determine which molecules were permeable to the dialysis tubing To relate the diffusion.
Advertisements

Chemical Tests for Glucose, Starch, Proteins and Fats.
Testing for Macromolecules
Chemical Tests for Nutrients
1. What does the tubing represent?
Unknown Foods: Macromolecule Lab Chapter 2: Carbohydrates, Lipids, and Proteins.
Biochemistry Indicators. What is an indicator? Indicator- chemical that produces a characteristics color when a particular substance is present Standards-
Nutrient Testing Year 10 Biology.
Activity Food Testing By: Mahi.
IDENTIFYING MACROMOLECULES IN FOOD LAB
Lab – Identifying food nutrients WRITE THIS DOWN- MEMORIZE IT.
Identification of Macromolecules with Indicators
FOOD. Protein is for…. Growth and Repair Protein is found…. Meat Fish eggs.
Organic Compounds in Food Lab
Experiment Questions Food Tests.
Food Tests Grade8.
Biology Ms. Haut. 1. Add 1 ml (10 drops) of Benedict’s solution to the test tube. 2. Add 8 drops of sample solution to a test tube. 3. Heat the mixture.
IDENTIFYING MACROMOLECULES IN FOOD LAB
OOLONG TEA BY LEO MATSUMURA. RESEARCH Oolong tea is made out of: Energy (per 350ml)0kcal Protein (per 350ml)0g Lipid (per 350ml)0g Carbohydrate (per 350ml)
IDENTIFYING MACROMOLECULES IN FOOD LAB. Introduction Carbohydrates, proteins, and fats are all essential nutrients. We cannot manufacture these nutrients.
 Test for simple (reducing) sugars  Benedict’s is blue  Put test substance in a test tube with distilled water and a few drops of Benedict’s  Heat.
© OUP: To be used solely in purchaser’s school or college Food Tests Food Tests Review.
1. To test for the presence of Starch
How does your food get into your blood?
IDENTIFYING MACROMOLECULES IN FOOD LAB
Food Tests D. Crowley, 2007.
Are acids and alkalis always dangerous? L/O – To know the hazards of using acids and alkalis.
Experiment Questions Food Tests. For what is the Biuret test (copper sulphate and sodium hydroxide solutions) used in the biology laboratory? Test for.
Diffusion through a membrane Lab
 In this lab experiment you are going to play the role of a chemical detective to decide which chemicals are present in common food substances.  Certain.
Table of Contents. Agenda Class Business –Test rewrites due today! IF YOU GOT A 28 OR LOWER THEY ARE MANDATORY! –Building macromolecules review ?s are.
Testing for Biological Macromolecules
Starter Look at food labels Why is it useful to put the ingredients and nutritional value of food on labels? What is a food scientist? What is the Foods.
Fuel To know what a fuel is, and why fuels are used.
Food Tests. Carbohydrate - Starch Test Put a sample of food in the dropping tile Add a drop of iodine solution. Iodine solution will turn from brown to.
Food Tests Learning Objectives: To understand the main components of the human diet. To test for the presence of starch, glucose protein and fat in a food.
Te Kura Māori O Porirua Food Testing.
Identification and quantification of organic molecules
Collect a new learning booklet from the front of the classroom.
IDENTIFYING MACROMOLECULES IN FOOD LAB
How to detect macromolecules in food
Test for Glucose All the monosaccharides (e.g. glucose) and many of the disaccharides are classed as reducing sugars. Benedict’s test is used to determine.
Identifying Macromolecules
8A What’s in food? What does this food contain? – use your team stickers to predict. Use team counters to record actual result. Test Result Present? Starch.
IDENTIFYING MACROMOLECULES IN FOOD LAB
Classify each as a carbohydrate, protein or lipid.
1. What does the tubing represent?
Starter What is the function of the digestive system?
Food tests.
What do we need to digest our food?
How can we find out if food contains protein, fat, starch or glucose?
IDENTIFYING MACROMOLECULES IN FOOD LAB
Food Groups Tests.
IDENTIFYING MACROMOLECULES IN FOOD LAB
Macromolecule Tests Will a potato turn dark purple with an iodine starch test? Starch Test -Iodine is used to test for starch -Dark purple/blue or black.
IDENTIFYING MACROMOLECULES IN FOOD LAB
Testing for Organic Compounds
Macromolecule Testing
Food tests: Required Practical 4
Macromolecules Analysis Lab
Tests for Organic Compounds
Classify each as a carbohydrate, protein or lipid.
Macromolecules Analysis Lab
IDENTIFYING MACROMOLECULES IN FOOD LAB
Classify each as a carbohydrate, protein or lipid.
Lipid Test - Brown Paper
Laboratory 1 – Food Testing
IDENTIFYING MACROMOLECULES IN FOOD LAB
Diffusion through a membrane Lab
23 / 03 Thursday Kaupapa: Test for the presence of starch by using iodine solution Test for the presence of glucose by using Benedict’s solution.
Presentation transcript:

Food Tests L/O ;- To know how to test for starch, sugars, proteins and fats

What else do you think is involved with being a healthy school? Noadswood is now a healthy school. How has the food in the canteen changed to make it healthier? What else do you think is involved with being a healthy school?

Testing for Protein Add Biuret Solution If it goes light purple you have protein Testing for starch Add Iodine Solution If it goes black you have Starch Testing for Glucose Add Benedicts Solution Put it in the water bath (2 mins) If it goes orange you have Glucose Testing for Fats Rub food on a piece of filter paper If it leaves a greasy mark it has fat in it

Key Stage 3 Risk Assessment Hazard Risk Minimising Action Emergency Action Extra Info Use of Lab

Key Stage 3 Risk Assessment Hazard Risk Minimising Action Emergency Action Extra Info Use of Lab Tripping over stools/bags Stools under desk Bags under desk Ice on knocks Call first aider Hot water Scolding Stand up during practical Run under cold water Glass Cuts Take Care with glass Teacher clear up Elevate cut Pressure

Food tests results table Protein Starch Glucose Fats

Food detective Click on the link to play the food detective game http://www.bbc.co.uk/schools/ks3bitesize/science/organisms_behaviour_health/food_detective/activity.shtml