What type of protein speeds chemical reactions?
Enzymes are proteins which catalyze, or 'speed up', chemical reactions.
'Speeding up', also known as catalysis, is the process by which the rate of a chemical reaction increases. Proteins, which are like the laborers of the cell, which catalyze chemical reactions are called enzymes. One example of an enzyme is glucosidase, which takes maltose, a disaccharide, and splits it up into two monosaccharides (glucose) much more quickly than a molecule of maltose could split into two glucose molecules independently.