VIDEO: Dissimilation in biology clearly explained
Furthermore, the dissimilation in the biology referred to as cellular respiration or internal respiration. The dissimilation in biology will now be deepened and clearly explained.
Dissimilation in biology is clearly explained here
- It is good for school to know that dissimilation is next to the terms cellular respiration or internal respiration is also used as a metabolism to bring the biological process closer define. Furthermore, it is so that every cell energy needed to ensure the drive of their metabolism. This fact makes a dissimilation process necessary not only in animal cells, but also in plant cells. Furthermore, both animal and plant cells need oxygen for the breakdown of substances. Therefore, the term cellular respiration is used for plant cells as well as animal cells.
- The main energy suppliers of the dissimilation process in biology include: carbohydrates, fats and proteins.
- Dissimilation is now also understood in biology as a degradation process or a degrading reaction. In this sense, a high-energy substance is converted into a lower-energy substance, while energy is also released at the same time. This energy is also known as ATP for short. ATP stands for adenosine triphosphate. Furthermore, ATP is one of the nucleotides, which in turn form the basic building block of nucleic acids. In short, nucleotides are molecules made up of three basic substances, namely phosphate, sugar and a base component.
The dissimilation process in biology is almost comparable in most animal cells and this will be explained more clearly below.
Every biologist and every student, at least in the biology advanced course, will at some point ...
Dissimilation explained in a few steps
Although the dissimilation in the different cells is almost comparable, not every dissimilation process takes place in the order of the following explanations.
In biology, however, dissimilation can be roughly divided into the following four phases: breakdown into the basic building blocks, glycolysis, citric acid cycle and end oxidation.
- During the breakdown of the basic energy building blocks, in the first phase of dissimilation, fat is converted into fatty acids plus glycerine, starch into glucose and proteins into amino acids. This takes place in the so-called cytoplasm of the cell.
- In the cytoplasm, sugars become in a series of reactions during the glycolysis phase split up and the so-called activated one is formed with the release of carbon dioxide Acetic acid. The coenzyme nicotinamide adenine dinucleotide (NAD) is then broken down into the enzyme NADH dehydrogenase (NADH) and ATP is produced.
- In the subsequent citric acid cycle, the previously activated acetic acid is bound to a C4 connection and broken down into citric acid. During the subsequent degradation reactions, among other things, Co2, NADH and various carboxylic acids are released. Eventually the C4 compound regenerates and new activated acetic acid binds to it to release citric acid again. Since this degradation process is repeated over and over again, we speak of a cycle - this is called the citric acid cycle.
- Ultimately, the process of end oxidation occurs. In this process, NADH is oxidized to water by oxygen, which in turn releases energy, which then creates ATP again. In this way, ATP can then function as an energy source for future metabolic processes. For green plants, end oxidation is just as important as photosynthesis. For animal cells, end-oxidation is actually the primary source of energy.
In this way, dissimilation in biology is also clearly explained for school.
