Which molecule are proteins made from?
What happens to the long chains formed by these molecules?
They are folded up into a specific shape
What do proteins act as?
Structural components of tissues (e.g. muscles), Hormones
What do catalysts do?
The increase the rate of chemical reactions without being used up.
What are biological catalysts called?
Which type of molecule are enzymes made from?
What property of enzymes is vital for its function?
The shape of the enzyme molecule
What do high temperatures do to enzymes?
Change the shape of the enzyme molecule - the enzyme is DENATURED
What other factor is important for enzymes to function correctly?
What does denatured mean?
When the active site of an enzyme changes shape.
Which two enzymes are present in biological detergents (washing powders)?
Proteases and lipases
How does having enzymes in biological detergents help them to perform better?
They are more effective at low temperatures (high temperatures will denature the enzymes in them)
How are proteases used in industry?
To pre-digest baby food (making it easier for babies to digest their food)
How is isomerase used in industry?
To convert glucose syrup into fructose syrup, which is much sweeter, and therefore can be used in smaller quantities in slimming foods.