Question

Sort each of the following descriptions into the most appropriate bin based on whether it accurately describes a cofactor, a coenzyme, or a prosthetic group. (Not every answer may be used.)

- the heme group of catalase is an example of one of these

- a small molecule that an enzyme requires to function; can be amino-acid based, a metal, or an organic compound

- a metal, such as iron, that is not permanently associated with an enzyme may be an example of one of these

- a coenzyme that is permanently associated with an enzyme

- it is usually derived from vitamins

- a cofactor that has an organic component, but no amino acids

a small molecule that an enzyme requires to function; can be a metal or an organic compound

Answer 1

Enzymes require the help of helper molecules called cofactors and coenzymes. The heme group in catalase is an example of a prosthetic group, which is a coenzyme permanently associated with an enzyme. Cofactors can be amino-acid-based, metallic ions, or organic compounds.

Step-by-step explanation:

In biology, enzymes often require the help of non-protein molecules known as helper molecules, which include cofactors and coenzymes. Cofactors are inorganic ions such as iron and magnesium, while coenzymes are organic molecules derived from vitamins. The heme group of catalase is an example of a prosthetic group, which is a coenzyme that is permanently associated with an enzyme. A small molecule that an enzyme requires to function can be a cofactor, which can be amino-acid-based, a metal, or an organic compound.