A Prokaryote is a single cell organisms that does not have a nucleus, which is divided into two major groups: archaeabacteria and bacteria. Prokaryotes are usually found in three common structures, such as bacillus is rod shaped, crocus is spherical-shaped, and spirillum is long shape. Although there are prokaryotes that are responsible for diseases there are also good types of bacteria that we need. Prokaryotes provide essential services to biological systems for instance food and agriculture.
In certain foods there are good bacteria or probiotics that are needed. They help boost your immune system and also helps protect against bad bacteria. The different types of foods that contains good types of bacteria are: Yogurts which is fermented dairy products and contains live bacterial cultures, Buttermilk is produced by fermentation as lactic acid bacteria, and also different types of cheese, but only aged cheese have live cultural bacteria. Furthermore, prokaryotes help in the production of sour cream, pickles, olives, vinegar and sourdough bread. Why, because prokaryotes are useful to some food production by converting textures, providing flavors, manufacturing ethanol, and protection from unwanted microbes known as food preservation. Food preservation is a method that is projected to keep microorganisms out of foods, removing microorganisms from contaminated foods, and obstruct the growth and activity of microorganisms already in foods. Also, bacteria breakdown proteins and fats into a complex mix of amino acids amines, and fatty acids, which lead to processing altars, the food product.
Fermentation is a form of chemical transformation of organic substances that breaks down simple compounds by exploiting the enzymes with compl...
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...rate the Haber process to produce ammonium.
Biotechnology is the request of scientific techniques that help alter and improve plants, animals, and microor¬ganisms to enhance their value. Agricultural biotech¬nology deals with biotechnology that is involved with applica¬tions to agriculture. It helps with the intensification of crop productivity by introducing such advantages as disease that are resistant and have an increase in deficiency tolerance to the crops. So now, research¬ers are able to select genes for disease resistance from other types of species and transfer them to important crops.
Prokaryotes affect us in our daily lives, other then food production with out bacteria we would not be able to test against human immunity. They also play roles in oxygen atmosphere, human digestion, and waste broken down
There are many different cells that do many different things. But all of these cells fall into two categories: prokaryotic and eukaryotic cells. Eukaryotic cells contain a nucleus and are larger in size than prokaryotic cells. Prokaryotic cells do not contain a nucleus, are smaller and simpler than eukaryotic cells. Two of their similarities are they both have DNA as their genetic material and are covered by a cell membrane.
Eukaryotic microorganisms can be defined as organisms whose cells contain a nucleus and other organelles enclosed in membranes. It is said that all multicellular organisms are eukaryotes which mostly comprises of animals, plants, and fungi. They are known to be much larger than prokaryotes which contain no nucleus because they are multinucleated organisms. Eukaryotes were said to have developed about 1.6 – 2.1 billion years ago. But that is only an approximation. We would not be here if eukaryotic microorganisms did not exist. These organisms tend to share a common origin and could be treated as a super kingdom, empire, or domain. Lastly, many unicellular organisms are also eukaryotes e.g protozoa. The types of eukaryotes are algae, yeast, fungi and protozoan.
Most prokaryotes are bacteria, which can cause many human diseases. In fact, bacteria cause about one half of human diseases (Reece et. al, 2011 p583). Some examples of prokaryotes that cause diseases are, Mycobacterium tuberculosis, which causes tuberculosis mainly in adults in their mid-life, but is not limited and can affect all age groups. This type of bacterial infection is normally treated with more than one antibiotic because bacteria have a high resistance to antibiotics since they have very quick generation
However, it is important to acknowledge that body may not necessarily require probiotics foods and supplements to be healthy or to operate optimally, foods and supplements with good probiotics can go a long way to complement the good work done by the bacteria in the gut. Below are some of the benefits of probiotics:
Bacterial cells, like plant cells, are surrounded by a cell wall. However, bacterial cell walls are made up of polysaccharide chains linked to amino acids, while plant cell walls are made up of cellulose, which contains no amino acids. Many bacteria secrete a slimy capsule around the outside of the cell wall. The capsule provides additional protection for the cell. Many of the bacteria that cause diseases in animals are surrounded by a capsule. The capsule prevents the white blood cells and antibodies from destroying the invading bacterium. Inside the capsule and the cell wall is the cell membrane. In aerobic bacteria, the reactions of cellular respiration take place on fingerlike infoldings of the cell membrane. Ribosomes are scattered throughout the cytoplasm, and the DNA is generally found in the center of the cell. Many bacilli and spirilla have flagella, which are used for locomotion in water. A few types of bacteria that lack flagella move by gliding on a surface. However, the mechanism of this gliding motion is unknown. Most bacteria are aerobic, they require free oxygen to carry on cellular respiration. Some bacteria, called facultatibe anaerobes can live in either the presence or absence of free oxygen. They obtain energy either by aerobic respiration when oxygen is present or by fermentation when oxygen is absent. Still other bacteria cannot live in the presence of oxygen. These are called obligate anaerobes. Such bacteria obtain energy only fermentation. Through fermentation, different groups of bacteria produce a wide variety of organic compounds. Besides ethyl alcohol and lactic acid, bacterial fermentation can produce acetic acid, acetone, butyl alcohol, glycol, butyric acid, propionic acid, and methane, the main component of natural gas. Most bacteria are heterotrophic bacteria are either saprophytes or parasites. Saprophytes feed on the remains of dead plants and animals, and ordinarily do not cause disease. They release digestive enzymes onto the organic matter. The enzymes breakdown the large food molecules into smaller molecules, which are absorbed by the bacterial cells. Parasites live on or in living organisms, and may cause disease. A few types of bacteria are Autotrophic, they can synthesize the organic nutrients they require from inorganic substances. Autotrophic bacteria are either photosynthetic or Chemosynthetic. The photosynthetic bacteria contain chlorophyll that are different from the plant chlorophyll. In bacterial photosynthesis, hydrogen is obtained by the splitting of compounds other than water.
Today we recognize two types of cells in science, prokaryotes and eukaryotes. A prokaryotic cell is one that lacks all membrane-enclosed organelles, including a nucleus, whereas a eukaryotic cell has a a multitude of different organelles, all with different functions (Urry et al. 2014). Prokaryotes are single cellular organisms that consist of a one prokaryotic cell, and include bacteria and archaea. There are many different types of these specific cells though, with many different formations. Three examples of this are coccus, spirillum, and bacillus. These are the three most common forms of prokaryotes that we know of today (Urry et al. 2014).
Prokaryotic cells are type of cell lacking a membrane-enclosed nucleus and membrane-enclosed organelles (Campbell, 2009). Archaea cells do not have a nucleus or other organelles therefore they are classified as prokaryotic cells.
Prescott, Harley & Klein (1990) describe bacteria as prokaryotic cells (cells that lack a true membrane enclosed nucleus). Bacteria are both small and simple in structure; they usually are between o.5 and 5cmm yet they have many characteristic shapes and sizes. Some bacteria are circular or oval shaped, they are known as cocci bacteria. Other bacteria are rod-shaped, they are known as bacilli bacteria, and some bacteria are spiral and coil-shaped and it is know as spirilla bacteria.
With the significant increase in global human population in recent decades, the pressure for groups of people to produce enough food and energy for everyone to consume while ensuring that these resources remain sustainable and replaceable has likewise dramatically increased. While the first several challenges produced by the rise on population were met with advances in technology, notably the Green Revolution, the continued growth of the population has placed further strains on the fields of agricultural, food, energy/environment, and biotechnology. Prokaryotic organisms, which are single- or small numbered-cell organisms that lack nuclei in their cells are essential to these fields because they provide a mechanism for current resources to be made more productive and available. Thus, prokaryotes, especially for roles in agriculture and energy, are extremely critical to understand within these processes.
Prokaryotic cells do not have a nucleus. The chromosomes which are found in prokaryotes are usually spread in the cytoplasm. In eukaryotic cells the chromosomes remain together inside the nucleus and there is a clear nuclear membrane that is surrounding the nucleus.
Any technological application that uses biological systems, living organisms, or derivatives thereof, to make or modify products or processes for specific use to benefit the lives of humans or other organisms, in bettering their lives. (Essays, UK. (November 2013). Can Genetic Engineering Be Regarded As Biotechnology Biology?. April 2014, http://www.ukessays.com/essays/biology/can-genetic-engineering-be-regarded-as-biotechnology-biology-essay.php?cref=1)
It is a single-celled organism that is not visible to the human eye, which means it can only be seen with a microscope. Bacteria are classified as Prokaryotes. They make their own food from the sunlight and can absorb food from the materials that they live on.
Genetic engineering increases the agricultural economy, the yields of agricultural produce, and also causes negative effects on the ecosystem. Genetic engineering enhances plant resistance to drought, salinity, disease, pests and herbicides. The aim is to try and enhance the growth, productivity, nutrient value, and chemical composition of the plants. Chemicals are constantly being developed or improved to enhance the competitiveness and adaptability of crops, and to kill the parasites and weeds that plague the agricultural sector. . This however is not always good as the plant and the pests then become resistant to these new chemicals, defeating the purpose of it being used.
In this assignment I am going to explain the 5 different social benefits of micro-organisms. The areas I am going to talk about are as follows;
Prokaryotes include several kinds of microorganisms, such as bacteria and cyanobacteria. Eukaryotes include microorganisms as fungi, protozoa, and simple algae. Virus cells often consist of just a nucleic acid either DNA or RNA in a protein capsule. Viruses are considered neither prokaryotes nor eukaryotes because they lack the characteristics of living things, except the ability to replicate (which they accomplish only in living cells).