Phospholipases are characterized by all of the following except which of these answers?

• A. Possess the ability to damage host cells.
• B. Are released by pathogens into host cells during infection.
• C. Are able to form pores in the cell membranes of host cells.
• D. Are able to hydrolyze cell membranes of host cells.

Answer: (C)

Verified step by step guidance

1. Understand the role of phospholipases: Phospholipases are enzymes that hydrolyze phospholipids, which are a major component of cell membranes.
2. Identify the common characteristics of phospholipases: They can damage host cells, are released by pathogens during infection, and can hydrolyze cell membranes.
3. Recognize the exception: Phospholipases do not form pores in cell membranes. This function is typically associated with other types of proteins, such as pore-forming toxins.
4. Differentiate between hydrolyzing and pore-forming: Hydrolyzing involves breaking down molecules, while pore-forming involves creating openings in membranes.
5. Conclude that the statement 'Are able to form pores in the cell membranes of host cells' is the exception, as it does not align with the typical functions of phospholipases.