Question

How do cells die?

Answer 1

Cell death:

1. A cell can die in a variety of ways, including infection, starvation, lack of oxygen, poisoning, external injury, trauma, and so on.
2. There are two kinds of cell death:-

Apoptosis:

1. A normal, pre-programmed process of cellular self-destruction. Also known as "cellular suicide."
2. Apoptosis is the process by which unwanted cells are destroyed.
3. It is essential during a viral infection because it kills the invaded cell, preventing virus spread and protecting the organ.
4. The cell shrinks and pulls away from its neighbors during apoptosis.
5. The cell's surface appears to be boiling.
6. The nucleus condenses, the DNA fragments into uniformly sized fragments and the cell disintegrates.
7. Phagocytes engulf and eliminate the death cell and debris.

Necrosis:

1. It is an unplanned reaction to a high level of stress, such as a traumatic injury or poisoning.
2. Here, the cell loses its ability to control the flow of liquid in and out, swells, and eventually bursts, releasing its contents into the surrounding area, causing it to become inflamed and sensitive.
3. Necrosis causes redness and pain in ourr fingers when we touch a hot stove.