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WorksheetsFunctional & Chemical Properties of Food - P1
Total questions: 12
Worksheet time: 12mins
Which is NOT an element that makes up Protein
Oxygen
Carbon
Sulfate
Hydrogen
Protein molecules are held together by....
Food glue
Chemical bonds
Sodium bonds
All of the above
Protein molecules are large molecules made up of (a)
Denaturation is.....
chemical bonds build up and protein molecules maintain their shape
chemical bonds have broken down and protein molecules keep the same shape
chemical bonds build up and protein molecules fold to change shape
chemical bonds have broken and the protein molecules have unfolded and changed shape
Which of the following can cause denaturation?
Hint: There are more than 1 answer!
Heat
Freezing
Air bubbles
Emulsifying
An example of mechanical agitation is ......
When frying an egg
When adding lemon juice to cream
When mechanically beating meat
When whisking egg whites for meringue
Denatured protein molecules are....
Smaller and take up more space than they used to
Smaller and take up less space than they used to
Larger and take up less space than they used to
Larger and take up more space than they used to
Denatured protein molecules ________and ________with other ones to form big groups
Unfold and join up
Fold and join up
Emulsifier molecules have one end that likes water.
This is known as....
Hydrophobic
Hydrophilic
Hydrotension
Hydraulic
If you put oil and water in a jar then shook it up, the oil and water will mix together and form a cloudy looking liquid
True
False
Emulsions are either oil-in-water or water-in-oil
True
False
Milk is a type of ___________emulsion
water-in-oil
water-in-milk
oil-in-water
all of the above
