What term is used for a biological catalyst made of protein?

What term is used for a biological catalyst made of protein?

• A. Denatured enzyme
• B. Enzyme
• C. Immobilised enzyme
• D. Protease enzyme

Answer: (B)

Enzymes are biological catalysts made of protein. They speed up chemical reactions by providing an active site with a shape that fits a specific substrate, lowering the activation energy needed for the reaction. Most enzymes are proteins (there are a few RNA molecules that can act as catalysts, but the typical biological catalyst made of protein is an enzyme). The term is general for this kind of catalyst; proteases are just one specific type of enzyme that breaks down proteins, immobilised enzymes are enzymes attached to a surface for reuse, and a denatured enzyme has lost its proper shape and can no longer function.

Enzymes are biological catalysts made of protein. They speed up chemical reactions by providing an active site with a shape that fits a specific substrate, lowering the activation energy needed for the reaction. Most enzymes are proteins (there are a few RNA molecules that can act as catalysts, but the typical biological catalyst made of protein is an enzyme). The term is general for this kind of catalyst; proteases are just one specific type of enzyme that breaks down proteins, immobilised enzymes are enzymes attached to a surface for reuse, and a denatured enzyme has lost its proper shape and can no longer function.