Bacteria Morphology

Bacteria Morphology

Bacteria has a very wide diversity of shapes and sizes. These are referred to as the bacteria morphology. Bacteria cells are about 1/10 the size of eukaryotic cells and they are generally between 0.5 and 5.0 micrometers in length. A few species are up to half a millimeter long and they are visible to the naked eye. Among the smallest bacteria, there are those that measure 0.3 micrometers as well as the largest viruses. Microbiologists claim that there are bacteria that are smaller but these…

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Viral Genome

Viral Genome

Viral Genome: A viral genome can be a variety of genomic structures that can be seen among viral species. As a group, they contain more diversity than plants, animals, archaea or bacteria. There are millions of different viruses and we haven’t even discovered all of them yet. Today, roughly 5 000 of these viruses were studied in great detail. A virus either has a DNA or an RNA genome. The two main types is the RNA and DNA virus, which is (as you’ve guessed t),…

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Types of protozoa

There are various types of protozoa that people hardly know about. What are their purpose? What do they actually do? Look at our protozoa taxonomy, protozoa structure and our protozoa explanation to learn more. Types of protozoa: Protozoa are classified according to the ways in which they move about. One phylum (the Sarcodina), moves by pushing out portions of their cytoplasm forming pseudopods (“false feet”) in order to propel them forward. They capture their food by extending their pseudopods around it, engulfing it, and digesting…

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Bacteria vs Virus

Bacteria vs virus is a mix characteristics and differences. Each virus is different from each bacteria. What do we know about the differences? How can we explain it? It’s simple. All of the differences of bacteria vs virus will be explained. Definitions Bacteria Virus Bacteria are unicellular organisms. They are typically a few micrometers long. The differences in shapes vary greatly and they include curved rods, spheres, rods and spirals. A virus is a sub-microscopic particle. They can infect the host of a biological organism.…

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Pathogenic bacteria

Pathogenic bacteria are bacteria that cause bacterial infection. Most bacteria are harmless, beneficial or pathogenic. Various diseases such as tuberculosis is causes by pathogenic bacteria. Diseases caused by pathogenic bacteria. Each pathogenic species has a few characteristics with interactions related to humans. Conditionally pathogenic. conditionally pathogenic bacteria only become pathogenic if certain conditions are met. These may vary according to your immune system and injuries. Intracellular. Other organisms  may also cause diseases in humans. Obligate intracellular parasites are able to grow and reproduce only within…

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Evolution of fungi

Why the evolution of fungi? The evolution of fungi has been researched for decades. Just like animals and plants, we have studied their evolutionary path through genetic analysis. The evolution of fungi. The evolution of fungi has been going on since fungi diverged from other life around 1,500 million years ago. The glomaleans branched out from the “higher fungi” at ~570 million years ago. This is based on DNA analysis. Fungi most-likely colonised the land during the Cambrian era. From today, that’s over 500 million…

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Types of bacteria

There are many different types of bacteria. They can be classified according to their physical characteristics. Even by how they interact with the environment and other living things. The most important difference between the types of bacteria is whether it’s beneficial or not. Types of bacteria: Type. Explanation. Beneficial bacteria. Most individuals don’t want to come into contact with any form of bacteria due to fear. People have always been scared of deadly diseases. Some types are indeed helpful to your health. It’s not that…

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Virus Evolution

Viruses are ancient. Probably the same as bacteria but we hardly know where they come from.  Virus evolution is also defined as virology. A subfield of biology where people actually study their origins. Where do viruses come from? This is a question everyone probably asked at some point. Tracking virus evolution and origins is like searching for a needle in a hay stack. They don’t leave fossils because they are smaller than a grain of sand. Virus Evolution. The genomes of many organisms contain endogenous…

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Retrovirus

Retrovirus

A retrovirus is a single stranded RNA virus that stores its nucleic acid in the form of an mRNA genome. Like all viruses, it’s a parasite. The virus enters the host cell and takes refuge in the cytoplasm. The virus uses its own reverse transcriptase enzyme. This enzyme produces DNA from its RNA which happens in the reverse of the usual pattern. The new DNA is then integrated into the host cell genome by an integrase enzyme. At this point, the retroviral DNA is generally…

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RNA Virus

An RNA virus is just as he name implies. It is a virus that has RNA as it’s genetic material. The nucleic acid is generally single-stranded RNA but it may also be double-stranded RNA. The ICTV classification system, classifies RNA viruses as those that belong to Group 3, Group 4 or Group 5of the Baltimore classification system for classifying viruses. It does not consider RNA viruses with DNA intermediates in their life cycle as RNA viruses. Viruses with RNA uses their genetic material that include…

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