On the issue of the lack of inorganic salts in plants

The most important things that plants need to grow are inorganic salts containing nitrogen, phosphorus, and potassium. If a certain inorganic salt plant is missing, it will not grow normally, and corresponding symptoms will appear.

The amount of inorganic salts required is different at different stages of plant growth. For example, rape needs a lot of nitrogen-containing inorganic salts during the growth of its vegetative organs, and more phosphorus-containing inorganic salts when flowering and fruiting.

First, when nitrogen is deficient, the plant is short and thin, and the leaves are yellow.

Second, when phosphorus is deficient, the plant is particularly short, and the small leaves are dark green and appear purple.

Third, when potassium is deficient, the stem of the plant is weak and easy to lodge, and the edges and tips of the leaves are brown, and gradually scorched.

In addition to the above three types of inorganic salts, plants also need many other types of inorganic salts.

Take, for example, the lack of inorganic salts in humans.

Inorganic salts

That is, the salts in the inorganic compounds, formerly known as minerals, generally only account for 1% of the fresh weight in biological cells, and more than 20 kinds have been found in the human body, among which a large number of elements are calcium Ca, phosphorus P, potassium K, sulfur S, sodium Na, chlorine Cl, magnesium Mg, trace elements are iron Fe, zinc Zn, selenium SE, molybdenum Mo, fluorine F, chromium Cr, cobalt Co, iodine I, etc. Although the content of inorganic salts in cells and the human body is very low, but the effect is very large, if you pay attention to the diversification of the diet, eat less animal fat, eat more brown rice, corn and other coarse grains, do not eat too much refined flour, you can maintain the normal level of inorganic salts in the body.

Functions of inorganic salts.

1. It is a structural component of the cell.

Some inorganic salts are important components of certain complex compounds within the cell.

Example: Mg2+ is an essential component of the chlorophyll molecule; Fe2+ is the main component of hemoglobin; Calcium carbonate is an important component in bones and teeth in animals and humans.

2. Participate in and maintain the metabolic activities of organisms.

Example: Mammalian blood must contain a certain amount of Ca2+, and convulsions can occur if the amount of calcium salts in the blood of an animal is too low. Ca2+ is also very important for blood clotting, without Ca2+, blood cannot clot.

The inorganic salt ions in the organism must maintain a certain proportion, which is very important for maintaining the osmotic pressure and acid-base balance of the cell, and is a necessary condition for the organism to carry out normal life activities. For example, HCO3 plays an important role in maintaining normal blood pH. The enzymes containing Zn are the most, and the activities of more than 70 enzymes are related to Zn.

CO is an essential component of vitamin B12 and is involved in the synthesis of nucleic acids.

3. Maintain the acid-base balance in living organisms.

4. Maintain the osmotic pressure of cells. In particular, it plays an important role in the absorption of nutrients by plants.

Inorganic salts contain a lot of energy in living things.

Understand the effects of inorganic salts on the human body.