Why do armyworms melt when they encounter salt?

The reason why armyworms melt when they encounter salt: the water in their body flows out of their body under the action of osmosis, and it looks as if it has been melted by table salt.

Osmosis: The phenomenon in which water or other solutions in a low-concentration solution pass through a semi-permeable membrane into a higher-concentration solution. For example, the protoplasmic membrane and vacuolar membrane of plant cells are semi-permeable membranes.

The roots of plants mainly rely on osmosis to absorb water and minerals from the soil. Osmosis refers to the diffusion of water molecules as well as solutes through a semi-permeable membrane. The diffusion of water also moves from a place with high free energy to a place with low free energy, and if solutes are taken into account, water flows from a place with a low solute concentration to a place with a high solute concentration.

Osmosis occurs not only between pure solvents and solutions, but also between solutions of different concentrations of the same kind, with low concentrations of solutions passing through semi-permeable membranes into higher concentrations. The aqueous solution of crystalline substances such as sugar and salt is easy to pass through the semi-permeable membrane, while non-crystalline substances such as paste and gelatin cannot pass through.

Because the water content in the armyworm is quite high, salt dialysis will infiltrate the water in the body from the body with low salt content to the body with high salt content.

Then the skin of the slug is a selective permeable membrane, permeable to water and impermeable to salt, due to the imbalance of salt ion concentration on both sides, so the osmotic tendency is that the water from the inside penetrates to the outside. So the water in the slug's body is sucked out in this way. And so, it turned into water.

The salt drained the water out of its body.

Why do slugs melt into water when they encounter salt, and what's going on here?

Ninety percent of armyworms are composed of water, they need to keep the salt concentration in the body at a low value, in order to keep the body fluid does not lose, when they encounter salt, the salt will dissolve into the body, so that the concentration rises, the salt outside the body will absorb water, resulting in the loss of water in the armyworm's body, and eventually there will be a danger of death, so they are afraid of salt.

Armyworm is a type of insect belonging to the order Lepidoptera, the family Noctuidae. In China, except for Xinjiang, it is not reported. It is hosted by wheat, rice, millet, corn and other cereal grain crops and more than 104 species of plants in 16 families such as cotton, beans and vegetables.

The larvae eat leaves, and when they occur, they can eat all the leaves of crops, causing serious losses. Because of its swarming, migratory, omnivorous and gluttonous nature, it has become an important agricultural pest in the country. On August 14, 2012, the area of armyworm in China was nearly 50 million mu, and the degree of damage was the most serious in the past ten years.

Ninety percent of armyworms are composed of water, they need to keep the salt concentration in the body at a low value, in order to keep the body fluid does not lose, when they encounter salt, the salt will dissolve into the body, so that the concentration rises, the salt outside the body will absorb water, resulting in the loss of water in the armyworm's body, and eventually there will be a danger of death, so they are afraid of salt. <

Ninety percent of armyworms are composed of water, they need to keep the salt concentration in the body at a low value, in order to keep the body fluid does not lose, when they encounter salt, the salt will dissolve into the body, so that the concentration rises, the salt outside the body will absorb water, resulting in the loss of water in the armyworm's body, and eventually there will be a danger of death, so they are afraid of salt.

Mucus is a lubricating fluid and has a moisturizing effect.

Because the slug is a mollusk, when the surface of the body encounters salt, its body will begin to lose water, which will then make its body contract, and finally the connection between cells will be destroyed due to water loss, so that the rest of the material will seem to melt.

It is presented as an animal, a multicellular animal, not a bacterial symbiont.

The presence of salts increases the concentration of the extracellular solution of the worm, and the cells will shrink under the difference between the inner and outer concentrations until they die. The bug will have a large number of cells, and eventually die on its own, and the cells contain too much water, and the large amount of water will cover their cells and look like a lump of water.

Haven't you heard that proteins salt? Proteins will be denatured when they encounter heavy metal ions, and when they encounter light metal ions, they will become precipitated and precipitated, which is why salt is not put when cooking fish soup and salt is put when drinking soup.