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Homogeneous can be defined as "same" or "similar". It can be used to describe things that have similar properties. Homogeneous substances are, for example, substances that are homogeneous in volume and composition over their entire volume. As a result, two samples obtained from two different portions of homogeneous mixtures and substances have the same compositions and properties.
Homogene Etymologie
The word homogeneous derives from two Greek words: "homo" (meaning "the same") and "genous" (meaning "kind"). As a result, homogeneous refers to people who are all perceived as the same, similar, or in the same proportion.
What is a homogeneous mixture?
Homogeneous means "like" or "similar". It's the old name for homologous in biology, meaning "matching components, similar structures, or the same anatomical sites." Homogen is derived from the Latin homo, meaning "equal," and "genous," meaning "kind." homogeneous is a variant. Heterogeneous is the antonym of homogeneous.
A mixture is formed when two or more components combine without chemical changes. The mechanical mixing or blending of objects such as elements and compounds defines a blend. There is no chemical bonding or chemical change in this process.
This preserves the chemical properties and structure of the components in a combination. Size, shape, color, height, weight, distribution, texture, temperature, radioactivity, structure, and a host of other properties remain the same throughout the homogeneous material.
When a pigment (e.g. ink) is combined with water, the resulting solution is very homogeneous, which is a fairly common example of homogeneity in our daily life. The paint combines equally with water, and each part of the solution has the same composition.
Mechanical techniques can be used to separate them. Centrifugation, filtration, heat and gravity sorting are some of the methods.
That is all when it comes to using the term in chemistry or biology. The term "homogeneous" is used in various research areas such as ecology to describe the homogeneity of a population.
For example, a group of people who grew up only through asexual reproduction—with identical genes and traits—is homogeneous. Scientists hypothesized that if different orientations came from the same source, the cosmos would behave similarly. Evolutionary biology is another area of biology where the term is used homogeneously.
Homogeneous is an old word for homologous, referring to anatomical components that share structural similarities, such as arising from descent from a common ancestor.
The term homogeneous is widely used in various research fields such as biology, chemistry, and ecology, but is always used to describe organisms in a mixture that share the same properties.
In chemistry, homogeneous refers to a combination where the ingredients are evenly distributed. However, at the molecular level, there are no chemical bonds between them. Air is the most typical example of a homogeneous mixture in our environment.
Homogeneous versus heterogeneous
A mixture, as previously mentioned, is the physical coming together of components (which in chemistry can be elements or compounds). There are two types of mixtures: homogeneous and heterogeneous.
The opposite of homogeneous is heterogeneous (variant: heterogeneous). It refers to the components in a combination that have different properties (“hetero”, meaning “different”). The most obvious example of a heterogeneous combination is oil and water forming two distinct layers that are immiscible with each other, resulting in two distinct layers.
One of the most notable properties of heterogeneous mixtures is that the particles are not evenly distributed throughout the mixture. Analysis of the combination with the naked eye reveals the heterogeneous character of the mixture. In addition, the components of all heterogeneous mixtures are not uniform.
The composition is similar in homogeneous mixtures and different in heterogeneous ones. Different phases can be seen in heterogeneous mixtures and a single phase can be seen in homogeneous mixtures.
In both types of mixtures, substances can be separated from each other by physical methods such as distillation, evaporation, centrifugation, chromatography, crystallization. In homogeneous mixtures there is variation and a lower number of species, in heterogeneous mixtures the opposite.
Although the concepts and compositions of homogeneous and heterogeneous substances are very different, both tend to change depending on context and composition. Let's take blood as an example. If we look at the blood with the naked eye, it appears to be homogeneous.
Blood, on the other hand, shows a variety of components under the microscope, including red blood cells, plasma, and platelets, showing that it is heterogeneous.
Homogeneous examples
We encounter numerous examples of homogeneous mixtures and units in our daily life. In biology, a homogeneous population is one in which all individuals have virtually the same genetic makeup due to some mode of asexual reproduction.
Asexual reproduction produces homogeneous children who are identical to each other, including their parents.
Many animals, such as goat populations, look homogeneous but are not because they reproduce through sexual reproduction.
According to experts, homogeneity reduces biodiversity, and as a result, the likelihood of early extinction due to environmental change is significant. Animal cloning is a common example of a homogeneous population.
Dolly the sheep was the first mammal to be successfully cloned from an adult somatic cell.
Homogeneous species are those that have indistinguishable characteristics and appear identical. Such species appear to have lower biodiversity.
The diversity and abundance of species in a given region and period, as well as the homogeneity of the ecosystem, can be quantified using a certain basic unit called species richness.
Species richness refers to the number of different species found in a given ecological community. It shows the relative abundance of species rather than the total number of species in the environment. As a result, species richness will be lower in a homogeneous environment, as high species richness indicates variability.
This is particularly evident in endemic species, which are species that have evolved over time in a specific geographic region and are not found anywhere else.
Grass, trees, ants, fungi, and certain animals are all instances of ecosystem homogeneity. Many endemic species found nowhere else in the world can be found in New Zealand.
Homogeneous used to be a very popular term in evolutionary biology to describe physically similar traits in different species, indicating a common evolutionary origin.
Shown are the anatomical features of several animal front legs. A similar evolutionary ancestor is shown by the identical bony components of the forelimbs.
Homogeneous summary
As a result of the foregoing discussion, homogeneous substances are those that are uniform in volume and composition throughout. Homogeneous mixtures in chemistry have the same size, shape, color, texture and many other properties.
A solution that does not separate over time is called a homogeneous mixture. Homogeneous species are those that are genetically similar but lack biodiversity and species richness in terms of biology and ecology.
Similarly, different solutions are used in our daily life, and both the blood and DNA in our body are homogeneous. Heterogeneous mixtures have properties that are the exact opposite of homogeneous mixtures.
As a result, the heterogeneous mixture contains non-uniform compositions and numerous phases that cannot be distinguished by physical changes. In addition, they are culturally diverse and wealthy.
Similarly, it has been shown that both homogeneous and heterogeneous mixtures tend to change depending on the environment and composition. As a result, both heterogeneous and homogeneous mixtures could be considered equally important.
Hyaline cartilage: definition, function and examples
Homogeneous Quotations
- Synthesis of oxazolidin-2-ones from unsaturated amines with CO 2 using homogeneous catalysis. ChemAsianJ. 4 Sep 2018;13(17):2292-2306.
- Recent advances in recycling of homogeneous catalysis. Chem Rec. 19 September 2019 (9): 2022-2043.
- An overview of thermal homogeneous catalytic deoxygenation reactions for valuable products. Helion . 20 Feb 2020;6(2):e03446.
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