Nettle cells are cells that live in the body of the hydra (mollusk, animal kingdom). They are similar to stinging cells (crab cells) but have different functions. The name "nettle cells" is due to their ability, in case of danger, to secrete a stinging poison that can harm surrounding animals or plants.
The nucleus of nettle cells contains a chromosomal nucleus to which all organelles and ribosomes are attached. DNA (deoxyribonucleic acid) inside the cell nucleus is responsible for cell division, growth and development.
When the cell surface is threatened, nettle cells release their contents into the surrounding space, which irritates the victim and leads to its escape. Thus, thanks to the ability to secrete acid, starch and proteins, nettle cells allow animals to protect themselves from predators. This process helps hydrina cells survive and the organisms avoid damage.
Nettle cells are the cells of the stinging gland of nettles. These are inconspicuous green hairs that are secreted for protection against potential predators. They can be found both at the ends of the stems and on the leaves of the plant.
The stinging gland looks like a small bubble under the skin of the plant. It contains the stinging apparatus in the form of a number of cells having an elongated shape. The length of these cells reaches 5 mm. The cells are abundantly covered with stinging hairs, which have special scales designed to capture the victim. They have the ability to be charged with a pulse that occurs when electromagnetic fields act on the plant. At the same time, the pressure in the cell increases and the stinging hair