Apoptotic bodies are
**Core Concept**
Apoptosis is a form of programmed cell death, characterized by a series of morphological and biochemical changes that ultimately lead to the death of the cell. Apoptotic bodies are small, membrane-bound vesicles that form during the late stages of apoptosis, containing fragmented organelles and cytoplasm.
**Why the Correct Answer is Right**
Apoptotic bodies are formed when the cell undergoes fragmentation, resulting in smaller vesicles that are bound by a cell membrane. These vesicles contain remnants of the cell's organelles, such as mitochondria and endoplasmic reticulum, as well as cytoplasmic components. The cell membrane remains intact, forming a boundary around the apoptotic body. This process allows for the efficient removal of dead cells from the tissue without causing inflammation.
**Why Each Wrong Option is Incorrect**
**Option A:** Clumped chromatin bodies refer to the aggregation of chromatin during apoptosis, but they do not represent the entire apoptotic body.
**Option B:** Pyknotic nucleus without organelles is a characteristic of apoptotic nuclei, but the presence of organelles is essential for defining an apoptotic body.
**Option D:** No nucleus with organelles is incorrect because apoptotic bodies typically contain remnants of the cell's nucleus, including chromatin.
**Clinical Pearl / High-Yield Fact**
Apoptosis plays a critical role in maintaining tissue homeostasis and preventing cancer. Dysregulation of the apoptotic pathway is associated with various diseases, including cancer and neurodegenerative disorders.
**β Correct Answer: C. Cell membrane bound with organelles**