Chemistry - Food and Additives

A quiz to test knowledge on gcse chemistry food and additives.

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What sort of a change is cooking food?
A chemical change.
1 of 7
What is the process called when a protein molecule straightens out?
Denaturing.
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What happens to starch grains when they are cooked?
The cells rupture and the grains swell up and spread.
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What do anitoxidants do?
They stop food from reacting with oxygen.
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What is the formula for baking powder?
Sodium hydrogen carbonate = sodium carbonate = carbon dioxide +water.
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What is the balanced equation for baking powder?
2NaHCO3 - Na2 CO3 + CO2 +H2O
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What do anitoxidants, food colours, emulsifiers and flavour enhancers do?
They help to preserve and enhance the colour or taste of food.
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Other cards in this set

Card 2

Front

What is the process called when a protein molecule straightens out?

Back

Denaturing.

Card 3

Front

What happens to starch grains when they are cooked?

Back

Preview of the front of card 3

Card 4

Front

What do anitoxidants do?

Back

Preview of the front of card 4

Card 5

Front

What is the formula for baking powder?

Back

Preview of the front of card 5
View more cards

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