In this essay I will be analysing micro organisms and disease. Firstly I will be defining micro organisms and then explaining the key features of the main categories of microorganisms. Followed by the roles of commensals and pathogens I will then go on to explain how micro organisms are transmitted and the routes of entry to and exit from the human body of micro organisms. I will also be explaining the logical sequence of events that occur from entry of a micro-organism to the body to the appearance of symptoms of a disease and then go onto discuss why not all infections lead to a disease. Finally I will explain a logical sequence the signs, symptoms and treatments of yellow fever which is an infectious disease. Micro organisms are …show more content…
Fungi such as mushroom, molds, and yeasts are eukaryotic cells with a true nucleus. Most fungi are multicellular and their cell wall is composed of chitin. They obtain nutrients by absorbing organic material from their environment decomposers, through symbiotic relationships with plants (symbionts), or harmful relationships with a host (parasites). They form characteristic filamentous tubes called hyphae that help absorb material. The collection of hyphae is called mycelium. Fungi reproduce by releasing spores. Protozoa are unicellular aerobic eukaryotes. They have a nucleus, complex organelles, and obtain nourishment by absorption or ingestion through specialized structures. They make up the largest group of organisms in the world in terms of numbers, biomass, and diversity. Their cell walls are made up of cellulose. Protozoa have been traditionally divided based on their mode of locomotion: flagellates produce their own food and use their whip-like structure to propel forward, ciliates have tiny hair that beat to produce movement, amoeboids have false feet or pseudopodia used for feeding and locomotion, and sporozoans are non-motile. They also have different means of nutrition, which groups them as autotrophs or heterotrophs. Viruses are noncellular entities that consist of a nucleic acid core (DNA or RNA) surrounded by a protein coat. Although viruses are classified as microorganisms, they are not considered living organisms. Viruses cannot reproduce
The article first addresses the issue of whether or not to consider viruses as living. Although viruses used to be thought of as being biological chemicals due to the fact that they consist of nucleic acids
Bacteria is an organism that lives of plants and animals. A virus is a small infectious agent that can replicate only inside the living cells of organisms. Most viruses are too small to be seen directly with a light microscope. Viruses infect all types of organisms, from animals and plants to bacteria and archaea. All viruses have genes made from either DNA or RNA, long molecules that carry genetic information; all have a protein coat that protects these genes; and some have an envelope of fat that surrounds them when they are outside a cell. These are Eukaryotes..when compared to bacteria(prokaryote) and virus.Like plants and animals, fungi are eukaryotic multicellular organisms.
I believe that viruses are living, just not in the same way as organisms you see on a daily
Viruses are coated genetic material that invade cells and use the cell's apparatus for reproduction.
A virus is a small capsule that contains DNA or RNA, viruses, unlike bacteria are not self sufficient and need a host in
Viruses - are extremely small particles made from protein and either DNA or RNA. They are not made up of cells instead they invade the living cells of other organisms and use them to produce many copies of
They are known as a diverse group of unicellular eukaryotic organisms. They are also defined as a single celled organism with animal like behaviour. Protozoa are microscopic cells that range from a size from 10 to 52 micrometers. Some protozoa are larger than most. For example the xenophyophores are around 20 centimetres in diameter. Free living forms are restricted to moist environments, such as soil, mosses and aquatic habitats. Many protozoa are symbionts.
8.) Combine the results and information from the previous tests and establish the identity of the
Well prokaryote is the name given to organisms that are made up from cells that lack a cell nucleus or cells that lack any membrane-encased organelles (a specialized subunit within a cell). In lamens terms, in prokaryotes, the DNA is not bound or held together inside a nucleus. Prokaryotes also only have a single loop DNA. Last but not least prokaryotes are divided into groups or domains but more about that in a minute.
After looking at many articles I believe that viruses are not alive. Even though in the beginning I believed they were. For an object to be alive it needs to have certain characteristics such as being able to: grow, develop, have a purpose, reproduce, adapt, and have cells. A living thing could reproduce which means they would make offspring. Viruses don't have the ability to grow and develop on their own. Viruses don’t have the ability to reproduce on their own without the help of a keeper
first digested and then ingested, Storing their food in the form of starch. Fungi eat
The Domain Eukarya is one of the three domains recognized in Linnaean taxonomy. Within the Domain Eukarya is the Kingdom Protista. This Kingdom is extensive but can be subdivided into three general categories: slime molds, protozoa, and algae. Each of these subdivisions has unique characteristics that distinguish them from one another. Prime examples of these different characteristics can be found in Physarum, Giardia, and Spirogyra.
Draw and label diagram on how this organism is transmitted. Make sure you include the reservoirs of infection, and vectors in involved in transmission, the type of transmission and the portals of entry and
Kingdom Protista is one of the most diverse group of eukaryotes on the the planet. Protists have different characteristics than plants, animals, and fungi so they are placed in their own group. The DNA of protists is found inside their membrane-bound nucleus. Each protist is a self supporting unit. There are about 30,000 known species of protists. They are so diverse, protists are classified by their methods of obtaining nutrition. They can act a parasite and feed on a living organism, live symbiotically with other organisms, hunt small bacteria or algae for food, or make their own food. Protists thrive in damp or aquatic environments like decaying leaves, damp soil, ponds, and oceans. Protists are relatively helpful
Metazoans are most likely a clade, that is, they all descended from one kind of protist. All metazoans originally had one cilium or flagellum per cell, for example. Metazoans also share the same kind of early development. They form into infolded balls of internal cells which are often free to move, and are covered by outer sheets of cells that form an external coating for the animal: a skin, if you like.