Enzymes are mostly proteins. However it was believed that first molecules that ever served as enzymes were RNA.
Molecules that act as catalysts in biological systems are enzymes. Enzyme catalyze chemical reactions by lowering the activation energy.
Enzymes are biological catalysts so Amylase, Maltase, Protease, Lipase. Yeast is also a biological catalyst.
biological molecule
both chemical and biological weathering
An enzyme is the biological equivalent of a catalyst.
Wood is a biological material.
Yes, that is exactly what an enzyme is.
DNA helicase. This is the enzyme that "unzips" DNA.
enzyme
Biological catalyst
an enzyme
an enzyme