What Are The Examples Of Prokaryotic Cells?
Do you know any examples of prokaryotic cells? If you don’t, then read this article till the end. Because we are giving all possible examples of prokaryotic cells and also its definition in detail. Well, prokaryote refers to any of the group of living organisms basically categorized by the lack of a true nucleus and other membrane-bound organelles, such as mitochondria and chloroplasts, and by the possession of a single loop of stable chromosomal DNA in the nucleotide region and cytoplasmic structures like plasma membrane, vacuoles, primitive cytoskeleton, and ribosomes. Below, we will discuss it in detail. Let’s have a look at the examples of prokaryotic cells.
What Are The Prokaryotic Cells?
A prokaryotic cell is defined as any living organism that is mainly characterized by a cell devoid of a well-defined nucleus as opposed to a eukaryotic that has a nucleus. Instead of a nucleus, the prokaryotes have a nucleoid region where the genetic materials are located. The prokaryotic cell also has various characteristics like cellularity, reproduction, prokaryotic organelles, etc.
Prokaryotes are unicellular means they have only one cell and they lack a well-defined nucleus. They generally reproduce asexually, which means by binary fission or by budding. Conjugation, apparently, is the counterpart of sexual products in eukaryotes where two cells exchange genetic materials via a conjugation tube.
Now, you have noticed some points regarding prokaryotic cells vs eukaryotic cells. Now, let’s understand what are some examples of prokaryotic cells.
What Are The Examples Of Prokaryotic Cells?
Examples of prokaryotic cells are listed below. You may be known to some of them and some examples are new to you.
- Archaea
- Bacillus Anthracis
- Bacillus Cereus
- Cyanobacteria
- Lactobacillus Acidophilus
- Streptococcus pyogenes
- Streptococcus Bactrium
- Escherichia Coli Bacterium
Examples Of Prokaryotic Cells
There are lots of examples of prokaryotic and eukaryotic cells found on Earth. Let’s know what are examples of prokaryotic cells in detail.
1. Archaea
There are more than 20 examples of prokaryotic cells but one of the important ones is Archaea. Archaea is a prokaryotic organism. They are a group of micro-organisms that are similar to, but evolutionarily different from bacteria. Many archaea have been found living in extreme environments, for example at high temperatures, pressure, salt concentration, etc. these types of micro-organisms are also called extremophiles.
2. Bacillus Anthracis
While learning the examples of prokaryotic cells and eukaryotic cells you can not ignore one of the most important prokaryotic organisms and it is Bacillus Anthracis. Bacillus Anthracis causes a serious infectious disease called Anthrax. It is a gram-positive, rod-shaped bacteria that occurs naturally in soil and commonly affects domestic and wild animals around the world. People can get sick with anthrax if they come in contact with infected animals or contaminated animal products.
3. Bacillus Cereus
Bacillus cereus is also one of the prokaryotic cells mainly found in soil, on vegetables, and in many raw and processed foods. It is a foodborne pathogen that can produce toxins, causing two types of gastrointestinal illness they are Emetic syndrome and diarrhoeal syndrome. When the emetic toxin is produced in the food, vomiting occurs after the consumption of the contaminated food.
4. Cyanobacteria
You might have heard a lot about cyanobacteria because they are commonly found in prokaryotic cell organisms. Cyanobacteria are found in water therefore, they are aquatic prokaryotic organisms. They live in water and manufacture their own food because they are bacteria, they are quite small and usually unicellular, though they often grow in colonies large enough to see.
5. Lactobacillus Acidophilus
One of the examples of prokaryotic cells among the 10 examples of prokaryotic cells is Lactobacillus Acidophilus. Actually, they are good bacteria and our body needs such good bacteria to support the immune system and digestive systems. Acidophilus helps maintain an acidic environment in your body, and your body needs this type of environment to help prevent the growth of harmful bacteria.
6. Streptococcus pyogenes
Streptococcus pyrogen is a major human-specific bacterial pathogen that causes a wide range of manifestations ranging from mild localized infections to life-threatening invasive infections. It is a round-to-ovoid coccus 0.6 to 1.0-micrometer diameter. They divide in one plane and thus occur in pairs, or in chains of varying lengths. They are found mainly in liquid media or clinical materials.
7. Streptococcus Bactrium
Streptococcus bacteria is also a prokaryotic cell organism. These bacteria are spread by direct contact with discharges from the nose and throat of infected people or by contact with infected wounds or sores on the skin. The risk of spreading the infection is highest when a person is ill, such as when people have “strep throat” or an infected wound.
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FAQ
What Are 3 Examples Of Prokaryotes?
The organisms in which a true nucleus and membrane-bound cell organelles are absent are called prokaryotic organisms or prokaryotes. Examples of prokaryotes are bacteria, mycoplasma, and cyanobacteria.
What Is 3 An Example Of A Prokaryotic Cell?
Examples of prokaryotes are blue-green algae, bacteria and mycoplasma. Among prokaryotes, bacteria are the most common and multiply very fast. They are single-celled and range in size from 0.2 to 10 microns (about 10 times smaller than most plant and animal cells).
What Type Of Cells Are Prokaryotic?
Prokaryotes are organisms whose cells lack a nucleus and other organelles. Prokaryotes are divided into two distinct groups: the bacteria and the archaea, which scientists believe have unique evolutionary lineages.
What Are The 4 Major Eukaryotes?
The most influential system, the ‘Whittaker’ five kingdom structure, recognises Monera (prokaryotes) and four eukaryotic kingdoms: Animalia (Metazoa), Plantae, Fungi and Protista.
Who Is The Difference Between Prokaryotic And Eukaryotic Cells?
Eukaryotic cells are cells containing membrane-bound organelles and are the basis for both unicellular and multicellular organisms. In contrast, prokaryotic cells do not have any membrane-bound organelles and are always part of unicellular organisms.
Conclusion
By reading this article, you can answer the questions like what are two examples of organisms with prokaryotic cells? You can also choose a correct answer when someone asks you to select all examples of cells that are prokaryotic. A prokaryotic cell is composed of genomic DNA, a cell membrane, and ribosomes however, they lack a nucleus, so their genomic DNA is free floating within the cell cytoplasm. The outer protective shield of a prokaryotic cell is called its cell envelope, which may consist of two or more layers.This was all about understanding the examples of prokaryotic cells.
