13. Microbicidal agents can: 1. Stimulate the endospore formation 2. Cause the cell lysis 3. Inhibit cell division 4. Kill most of pathogens

The correct answer is 4. Kill most of pathogens.<br /><br />Microbicidal agents are substances that have the ability to kill microorganisms, including bacteria, viruses, and fungi. These agents work by targeting specific components or processes within the microorganisms, leading to their destruction. The options provided in the question are:<br /><br />1. Stimulate the endospore formation: This is not a correct option. Endospores are a type of dormant cell that certain bacteria produce under stressful conditions. Stimulating endospore formation would not result in the killing of pathogens.<br /><br />2. Cause the cell lysis: This is a correct option. Cell lysis refers to the rupture or bursting of a cell, leading to the release of its contents. Some microbicidal agents work by disrupting the cell membrane or cell wall, causing the cell to lyse and ultimately killing the microorganism.<br /><br />3. Inhibit cell division: This is a correct option. Inhibiting cell division can prevent the growth and multiplication of microorganisms. By stopping the cell division process, microbicidal agents can effectively control the spread of infection.<br /><br />4. Kill most of pathogens: This is the correct answer. Microbicidal agents are designed to kill a wide range of pathogens, including bacteria, viruses, and fungi. They work by targeting specific components or processes within the microorganisms, leading to their destruction.