Photosynthesis and respiration of plants are two processes that complement each other. Although they sometimes confuse them, we are talking about two different reactions. One provides oxygen and is fed through a series of transformations. Respiration, as in the rest of living beings, is necessary, although in plants, the way to obtain oxygen may seem somewhat complex. However, it is much simpler than we think.
Each of these processes is vital to compensate for the other, without the one the second would not exist. Therefore, both are necessary for the life of a plant and that of the planet. In Green Ecologist we are going to explain in a simple way the difference between photosynthesis and respiration of plants, as well as what they are for in each case.
The plants feed through a process called photoautotroph, of which water plants are also part, such as algae, for example. Vegetables require ultraviolet rays that come from the sun, with this reaction transform carbon dioxide that they generate, in organic components and in oxygen.
Without the existence of solar rays, this process would be impossible, so there would be no vegetation. The ultraviolet rays stimulate the electrons when they come into contact with the chlorophyll of the plant and, with this, the oxygen molecules present in the CO2 are released.
This process generates carbohydrates that end up being stored inside the cells of the vegetables, transforming them into energy and food. We can summarize this four-part procedure Which are the following:
Plants breathe through their leaves and, in addition, to do the breathing the process is the opposite of photosynthesis. In this case, oxygen and glucose are transformed into CO2 and water. Subsequently, the retained energy from carbohydrates is gradually released.
For the cellular respiration in plants sunlight is not needed constantly. This is a continuous and exothermic process (release of energy), whereas in photosynthesis it occurs during sunlight and is endothermic (requires energy).
Cells located in the trunk and roots do not have photosynthetic pigments to absorb light. With which, the vegetables must obtain energy through other mechanisms, such as the cells of the leaves that do have chlorophyll. When there is no solar presence, the energy that the plant cells need is obtained through energy reserves, which are made up mostly of starch.
To take advantage of its energy, it must be divided into molecules made up of glucose. These, in turn, are transferred to the interior of the cells where they are transformed into organic molecules. The molecules end up penetrating the mitochondria, which is where cellular respiration takes place.
Another difference between these two processes is that, for plants to breathe, catalysts are not required as can occur in photosynthesis, whose reaction is generated thanks to chlorophyll. Cellular respiration originates from the mitochondria and the cytoplasm of your cells.
In summary, these are the main differences between photosynthesis and cellular respiration of plants:
Thanks to photosynthesis and the presence of plants, we can obtain oxygen, the element of which is vital for life on the planet.
If you want to read more articles similar to Difference between photosynthesis and respiration of plantsWe recommend that you enter our Nature Curiosities category.