Certified Cheese Professional Practice Exam

Proteases belong to which category?

1. Bacteria

2. Protein

3. Enzyme

4. Acid

The correct answer is: Enzyme

Proteases are classified as enzymes because they are biological catalysts that facilitate the breakdown of proteins into smaller peptides or amino acids. This process is vital in various biological functions, such as digestion, where proteases help break down dietary proteins into their building blocks for absorption and use by the body. The action of proteases is specific to proteins, highlighting their role in protein metabolism and their importance in various biochemical pathways. While bacteria can produce proteases, this is not their defining feature, as proteases themselves are not a category of bacteria; they are produced by different organisms, including plants and animals as well. Although proteins are the substrates that proteases act upon, the term “protease” specifically refers to the action of enzyme activity. The term “acid” does not apply since acids refer to substances that can donate protons (H+) in solutions and do not relate to the function of proteases directly. Therefore, understanding that proteases are specifically enzymes clarifies their classification in the context of biological functions.