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Enzymes


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bile
Yellowy-green liquid made in the liver and stored in the gall bladder. It is released into the small intestine and emulsifies fats.
biological detergent
Washing detergent that contains enzymes.
carbohydrase
Enzyme which speeds up the breakdown of carbohydrates.
catalyst
A substance which speeds up a chemical reaction. At the end of the reaction the catalyst remains chemically unchanged.
activation energy
The minimum energy needed to start off a reaction.
active site
The site on an enzyme where the reactants bind.
amino acid
The building block of protein.
amylase
The enzyme made in the salivary glands and the pancreas which speeds up the breakdown of starch into simple sugars.
denatured
Change the shape of an enzyme so that it can no longer speed up a reaction.
digested
Broken down into small molecules by the digestive enzymes.
digestive juices
The mixture of enzymes and other chemicals produced by the digestive system.
emulsifies
Breaks down into tiny droplets which will form an emulsion.
enzyme
A protein molecule that acts as biological catalyst.
fatty acids
An acidic building block of lipids.
glycerol
A neutral building block of lipids.
Glycogen
Carbohydrate store in animals, including the muscles, liver and brain.
isomerase
An enzyme which converts one form of a molecule into another.
lipase
Enzyme which breaks down fats and oils into glycerol and fatty acids.
lipids
Fats and oils.
protease
An enzyme which breaks down protein.
salivary glands
Glands in the jaw which secrete salivary amylase.
substrate
The material or molecule upon which an enzyme acts.