Infections are minute creatures that exist wherever on earth. They can contaminate creatures, plants, organisms, and even microscopic organisms. Here and there an infection can cause an illness so savage that it is lethal. Other viral contaminations trigger no discernible response. An infection may likewise have one impact on one kind of creature, yet an alternate impact on another. This...
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Abstract Infectious diseases remain a major cause of human and animal morbidity and mortality leading to significant healthcare expenditure.However, enormous successes have been obtained against the control of major epidemic diseases, such as malaria, plague, leprosy and cholera, in the past.The vast terrains and extreme geo-climatic differences and uneven population distribution present unique patterns of distribution of viral diseases. Dynamic...
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Bacteria is an example of a unicellular prokaryote. Several bacteria move by turning the flagellum (Kojima, 2015). Several movable bacteria move in fluid or on a firm exterior utilising their flagellum. The flagellum has a spiral shape and expands from the cell body. The flagellum’s turning movement causes the bacterial cell to swim. The rotary motor located in the inner...
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Viruses have continuously challenged our perception of what ‘living’ means. The scientific community have constantly debated whether viruses are classified as living or non-living organisms. Viruses are very important complexes of biochemical that influence all types of living organisms including bacteria, yeast, plants and animal cells. Viruses are blobs of RNA or DNA surrounded by a coat of protein. They...
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Introduction The membranes of cells are made up of a fluid imitating, semi-permeable plasma membrane. This is made up of a phospholipid bilayer. A phospholipid bilayer is comprised of phospholipids (see figure 1) and various membrane proteins. The lipid tails of the phospholipids are hydrophobic (repel water) and the phosphate heads are hydrophilic (attract water). In order to ensure the...
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In my opinion I don’t necessarily believe viruses are alive because of the fact that viruses can't reproduce on there own, they need a cell to reproduce. If you had a looser definition of alive then maybe they can be considered alive. I also beileve there not alive because according to the seven characteristics of life for something to be...
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Abstract We investigate whether a protein found in tardigrades called Damage suppressor, or Dsup, can help cells restart stalled replication forks in human cells. Tardigrades compose a phylum of microscopic animals known for their ability to survive extreme environmental conditions, and experiments have shown that Dsup prevents damage from accumulating in DNA (Hashimoto et al. 2016). Excessive stalled replication forks...
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Many biological students often wonder about the difference between necrosis and apoptosis because the two occurrences share many similarities. Despite the striking semblance, they also have lots of dissimilarities. So, if you are one of those people who struggle to spot those disparities, you have absolutely nothing to worry about because this informative guide gives a detailed breakdown of the...
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Viruses are the smallest microorganisms in life and cannot be seen by naked eyes or with light microscopy. They are considered as a contagious agent that is only regenerated within the host cells of other living organizations and can infect all living organisms in the earth, from animals and plants to microorganisms, including bacteria and the archaea. Viruses can be...
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Introduction Apoptosis refers to normal and coordinated death of cells where cells degrade their cytoplasmic contents and DNA. [1] It takes place in multicellular organisms as a programmed response of defense against noxious agents. It can also take place during the regulation of cell populations within the tissues. This analysis will further the definition provided above and explore causes of...
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The qualifications all biotic beings meet are not met by viruses on the grounds that there is a lot that a virus is unable to do. A virion cannot maintain homeostasis, or regulate its internal processes because it does not have the anatomy to do so, simply because a virus is not made up of cells. A virion is, fundamentally,...
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Programmed Cell Death Apoptosis is defined as programmed cell death. Apoptosis recently is not considered as the only cell death pathway since various cell death pathways are discovered. More accurately programmed cell death is defined as cell death that is dependent on genetically encoded signals or activities within the dying cell. Therefore, the designation programmed refers to the fixed pathway...
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Viral respiratory infections can cause many different illnesses related to the respiratory tract. These diseases may range from mild infections to more severe ones that can even lead to death. The most common respiratory disease is known as a cold, which is a mild infection that affects the upper respiratory tract and it is harmless in most cases. Common colds...
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The cell theory was developed in 1839 by microbiologists Scheinman and Schwann describes the properties of cells. A cell is defined as the basic smallest unit of life that is responsible for all life’s processes. They are the building blocks of life of any living being. All living beings are made up of cells. They may be made by single...
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Apoptosis and necrosis Cellular death is a naturally occurring phenomenon. Cells often die due to a harmful environment or through a regulated process of death, with the former termed necrosis and the latter termed apoptosis. While apoptosis is regarded as cell death resulting from normal healthy processes, necrosis results from external factors or disease. (Fink and Cookson, 2005) When cells...
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Introduction Cellular energetics are types of ways in which cells, whether eukaryotes or prokaryotes, obtain energy to drive functions in a cell. Cellular respiration is one type, for eukaryotes, that uses reactants like sugar, such as glucose, and oxygen to create products of carbon dioxide, water, and energy in the form of ATP (Urry et al 2020). The purpose of...
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The rapid spread of severe acute respiratory syndrome (SARS) in early 2003 was accepted by a number of governments as a challenge to their national security because of its adverse effects on their economies, including their hospital systems.The SARS epidemic is one of the beneficial case study for evaluating national and international capabilities to deal with disease outbreaks, both naturally...
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Viruses a foe which has affected the past and has now turned modern-day living into an almost apocalyptic like state due to the appearance of Covid-19. Along with being one of the most heavily studied areas within science, although a conclusive answer on whether viruses can be considered apart of the living or nonliving is still being debated. The virus...
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