Enzyme, in Greek means in living. (En=in, Zyme=living).
Coined by Wilhelm Kunhe, 1976.
An enzyme is a protein molecule that is a biological catalyst that catalyzes chemical reaction.
CHARACTERISTICS OF ENZYME
- Speed up chemical reaction.
- Enzymes are required in minute amounts.
- They are highly specific in their action.
- Affected by temperature.
- They are affected by pH.
- Some catalyse reversible reactions.
- Some requires co enzymes.
- Enzymes are inhibited by inhibitors.
TYPES OF ENZYMES
There are 6 Major types of enzymes. This is classified on the basis of reaction types.
- Oxidoreductase (dehydrogenasse).
- Transferase (kinase).
- Hydrolase (lipase, protease).
- Lyase (decarboxylase, aldolase).
- Isomerase (fumarase).
- Ligase (DNA ligase).
SPECIFICITY OF ENZYMES
Enzymes are highly specific in their action. Each enzymes acts on each substrate only.
It shows different types of specificity.
- Bond specificity.
- Group specificity.
- Absolute specificity.
- Optical specificity.
- Dual specificity.
This is the general introduction about enzyme.
Thank you for reading.