Electron transferring enzymes belong to

Who demonstrated that alcoholic fermentation was an enzymatic process?

The enzyme,which combines with a non-protein part to form a functional enzyme,is known as:

Enzymes consist of a protein part and a prosthetic group connected by weak bonds. During activity,these weak bonds are separated. This process is known as:

Which of these enzymes are not made of protein?

Which enzyme catalyzes the reaction shown below?
Lactose $\xrightarrow{\text{Hydrolysis}}$ Glucose + Galactose