131k views
3 votes
A non-protein substance that combines with a protein molecule to form an active enzyme?

1 Answer

5 votes

Final answer:

An enzyme is a protein that acts as a biological catalyst and speeds up biochemical reactions. It consists of an apoenzyme (protein portion) and a cofactor (non-protein portion). When they combine, they form an active enzyme.

Step-by-step explanation:

An enzyme is a protein that acts as a biological catalyst and speeds up biochemical reactions. It does this by reducing the activation energy required for the reaction to occur.

Enzymes can be categorized into two main parts: the apoenzyme, which is the protein portion of the enzyme, and the cofactor, which is the non-protein portion. Cofactors can either be metallic ions, such as Zn²+ or Mg²+, or organic compounds known as coenzymes.

When the apoenzyme combines with its cofactor, it forms the active enzyme, also known as the holoenzyme.

User Adam Sznajder
by
7.9k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.