Breathing in the leaves of plants occurs ... Gas exchange process

Breathing is an integral part in everyone's lifeof a living being. Oxygen is needed by everyone - fish, people, and animals. It would seem, why does the fish need air, because it lives under water? The water is saturated with oxygen, which is necessary for underwater creatures. Now we will talk about how breathing in the leaves of plants occurs. It is important to know that in the process of breathing plants, not only leaves, but also stems and roots participate. You will learn all this from our article.

Breathing in leaves of plants occurs byphotosynthesis. The difference between plants and other living things is also in the fact that trees absorb spent oxygen, that is, carbon dioxide, and in return they give us what we need. Let us proceed to a more detailed examination of this question.

Breath

Breathing in leaves of plants occursround the clock, seven days a week. In this case, the plant absorbs oxygen from the atmosphere, but can still use the product of its work, that is, oxygen, formed by photosynthesis (which is necessary for breathing human beings and other living things). The product of photosynthesis accumulates in the intercellular spaces, this is necessary for breathing at night.

What makes the breathing different at night? You need to breathe all day and night. Atmospheric oxygen in the daytime actively comes through stomata, shoots, roots, stem. But what to do in the dark, when the stomata of the leaves are closed in most cases? Here, and comes to the rescue stock, collected during the daytime, which is in the intercellular spaces. From there, the product of photosynthesis enters all cells of the plant, providing vital activity. Therefore, it is worth remembering that breathing in the leaves of plants occurs always, only the process itself may differ slightly in the light and dark time of the day.

Also, keep in mind that the process of breathing andphotosynthesis are completely opposite processes. When breathing plants absorb oxygen, but it needs much less than reproduces the same plant in the process of photosynthesis. This is a rather complex process, the absorbing oxygen oxidizes (transforms) the complex substances of the plant into two components:

• water;
• carbon dioxide.

What complex substances are we talking about? First of all, it concerns glucose. The process of breathing releases a large amount of energy that has been expended on photosynthesis. During this process, as we mentioned earlier, carbon dioxide is also formed, which is removed through:

• stomata;
• lenticels;
• roots.

There is ample evidence that carbon dioxide is actually produced by plants, but in very small quantities.

Gas exchange

So, breathing in the leaves of plants occurs incells of organs located on the entire surface, but these cells are also on the surface of the stem, roots and so on. But it is important to know that the main gas turnover occurs through the leaves of the plant. In the process of photosynthesis, carbon dioxide enters through the gap in the stomatal cells, then it passes to the chlorophyll-containing tissues. There is the formation of oxygen, which is able to reach the surface, into the surrounding environment. And in the process of breathing, everything happens the other way around, the plant consumes oxygen, and releases carbon dioxide to the surface.

But it is important to know that in the process of photosynthesiscreates a very large amount of oxygen, which is enough not only for breathing plants, but also for enriching the environment. As we see, these processes are opposite, but strongly interrelated. It is green plants that can supply all life on earth with the oxygen they need.

In addition to oxygen, plants are released and watercouples that also go out through the stomata. This process is called transpiration. All gas exchange processes are regulated by closing or opening the stomatal slit.

Aerobic respiration

Now we need to clarify that the breath of the leaf andcompletely the plants can be divided into two phases: aerobic and anaerobic. A little bit about the first type. Aerobic respiration occurs as an oxidative process. As is known, oxygen is consumed during oxidation. This process can be divided into two stages:

• anoxic;
• oxygen.

In the first stage, hydrogen is liberated by splitting the substrate. At the second stage, further splitting of the atoms occurs.

Anaerobic respiration

The breath of a leaf of a plant occurs, as we have alreadythey said, in two stages. Now let's say a few words about anaerobic respiration. Which is the process of oxidation of molecular hydrogen. As a result of this biochemical process, energy is released, which is a reserve for the synthesis of ATP.