The action of putrefactive bacteria on necrotic tissue results in
**Core Concept**
The action of putrefactive bacteria on necrotic tissue results in the breakdown of cellular components, leading to the release of foul-smelling gases and the characteristic signs of putrefaction.
**Why the Correct Answer is Right**
Putrefactive bacteria, such as Clostridium perfringens, thrive in anaerobic environments and feed on the proteins, carbohydrates, and fats present in necrotic tissue. The breakdown of these cellular components results in the production of volatile fatty acids, ammonia, and hydrogen sulfide, which are responsible for the characteristic odor of putrefaction. The action of these bacteria can also lead to the release of gas, causing the tissue to become swollen and bloated.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because while it is true that putrefactive bacteria can produce gas, this is not the primary action of these bacteria on necrotic tissue.
**Option B:** This option is incorrect because the breakdown of cellular components by putrefactive bacteria is not primarily due to the action of enzymes, although enzymes do play a role in this process.
**Option C:** This option is incorrect because while the production of foul-smelling gases is a characteristic of putrefaction, it is not the primary action of putrefactive bacteria on necrotic tissue.
**Clinical Pearl / High-Yield Fact**
The presence of putrefactive bacteria in a wound or tissue can be a sign of necrotic tissue that requires debridement to prevent further infection and promote healing.
**Correct Answer: C.**