16629951
Description
Mind Map by Patricia Rogers, updated more than 1 year ago
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Created by Patricia Rogers
almost 6 years ago
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Biology 1.3 Nutrients
and food test
- Food Tests
- iodine: Tests for starch
Yellow-brown > blue
black
- 3. Check to see if there's a negaive or positive
colour change
- 3. Check to see if there's a negaive or positive
colour change
- Ethanol: Tests for fat
Colourless> white
emulsion
- 2. Add a few drops of the solution to the test tube
- 2. Add a few drops of the solution to the test tube
- Biuret: Tests for protein
Blue> Purple
- 1. Add 1cm3 of the substance to a test tube, using
a syringe
- 1. Add 1cm3 of the substance to a test tube, using
a syringe
- Benadict's: Tests for glucose
Blue> Brick Red
- If testing using benadict's, put the test
tube in a water bath for a few minutes
after step 2.
- If testing using benadict's, put the test
tube in a water bath for a few minutes
after step 2.
- iodine: Tests for starch
Yellow-brown > blue
black
- Biological molecules
- Protein
- Used for growth, repair,
collegine, enzymes and
hormones
- Made up of
amino acids
- Used for growth, repair,
collegine, enzymes and
hormones
- Fats/ Lipids
- Made up of 3 fatty
acids and glycerol
- Used for insulation of heat,
protection of organs and
store of enery
- Made up of 3 fatty
acids and glycerol
- Carbohydrates
- Simple Carbohydrates
- Glucose, Sugar and
Lactose are a source of
energy
- Glucose, Sugar and
Lactose are a source of
energy
- Complex Carbohydrates
- Cellulose is used
as a cell wall in
plants
- Starch is used
as an energy
store in plants
- Glycogen is used as
an energy store in
animals
- Cellulose is used
as a cell wall in
plants
- Simple Carbohydrates
- Protein
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