Different infectious agents and the human body
Standard 7 SC.6.L.14.6- Compare and contrast types of infectious agents that may infect the human body, including viruses, bacteria, fungi, and parasites.
Viruses- Viruses are living parasites that must infect a living cell to reproduce. Virus particles which are also known as virions include either two or three parts. 1) Long molecules that carry genetic information 2) a coat that protects these genes 3) An envelope of lipids (a group of naturally occurring molecules) that surrounds the coat when they are outside of the cell. Viruses can infect all types of life forms From plants to animals to microorganisms and even bacteria. Viruses are extremely small, smaller than bacteria. A virus infects the human body by taking over a cell and trying to replicate itself as much as possible. If the virus is not checked at the doctors and treated, the cell that the virus is taking over will most likely die.
Fungi- Fungi are nonphotosynthetic meaning that they must absorb nutrients from other matter. A very large amount of fungi get there food from dead matter. Fungi can be unicellular (only containing one cell) or multicellular (having many cells). Like bacteria fungi can be beneficial and harmful. Harmful fungi gets into the human body and can get into your lungs creating many issues especially if it is toxic fungi.
Parasites- Parasites rely on other organisms for food and shelter. The parasite has all of the benefits in this relationship between itself and its host ( the organism it is relying in). A lot of times the host will suffer from diseases or sicknesses because of the parasites and the parasites will end up getting everything that it needs from the host. But sometimes the parasite will be relying on the host and the host will not experience any discomforts or diseases. The parasite multiplies and becomes stronger while the host grows weaker. A parasite needs a host if it does not have one it will die. Parasites can get into your body and cause discomforts, diseases, sicknesses, etc. Although all of these infectious agents are different they all have one thing in common, they can harm the human body and cause many sicknesses and discomforts.
Fungi- Fungi are nonphotosynthetic meaning that they must absorb nutrients from other matter. A very large amount of fungi get there food from dead matter. Fungi can be unicellular (only containing one cell) or multicellular (having many cells). Like bacteria fungi can be beneficial and harmful. Harmful fungi gets into the human body and can get into your lungs creating many issues especially if it is toxic fungi.
Parasites- Parasites rely on other organisms for food and shelter. The parasite has all of the benefits in this relationship between itself and its host ( the organism it is relying in). A lot of times the host will suffer from diseases or sicknesses because of the parasites and the parasites will end up getting everything that it needs from the host. But sometimes the parasite will be relying on the host and the host will not experience any discomforts or diseases. The parasite multiplies and becomes stronger while the host grows weaker. A parasite needs a host if it does not have one it will die. Parasites can get into your body and cause discomforts, diseases, sicknesses, etc. Although all of these infectious agents are different they all have one thing in common, they can harm the human body and cause many sicknesses and discomforts.
Bacteria- Bacteria are very small organisms that usually consist of one cell, they lack chlorophyll (A pigment found in plants that allow food to be produced). Bacteria is found everywhere from air, soil, skin, etc. they multiply rapidly forming millions to billions more bacteria with as much as a drop of water. Bacteria consists of prokaryotic cells which are cells that do not have a nucleus (a structure that controls a cells functions and contains genes). Harmful bacteria is the type of bacteria that attacks your body by releasing toxins making your body weak.
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Examples:
Fungi- certain molds and yeasts etc.
Bacteria-Streptococcus Pyogens (responsible for skin infections and sore throats) , Salmonella Typhi (responsible for deadly fevers) etc.
Viruses- Rabies, polio, Dengue fever, Ebola etc.
Parasites- Eye worm, roundworm, The dragon worm, vampire fish etc.
Fungi- certain molds and yeasts etc.
Bacteria-Streptococcus Pyogens (responsible for skin infections and sore throats) , Salmonella Typhi (responsible for deadly fevers) etc.
Viruses- Rabies, polio, Dengue fever, Ebola etc.
Parasites- Eye worm, roundworm, The dragon worm, vampire fish etc.
Vocabulary:
Viruses- living parasites that must infect a living cell to reproduce. Lipids -a group of naturally occurring molecules. Bacteria- very small organisms that usually consist of one cell. Prokaryotic cells- cells that do not have a nucleus. Nucleus - a structure that controls a cells functions and contains genes. Chlorophyll-A pigment found in plants that allow food to be produced. Things that you should know:
- Bacteria has prokaryotic cells, they are everywhere and they multiply rapidly, they attack your body releasing toxins and make you weak. -viruses must infect a living cell to produce, A virus infects the human body by taking over a cell and trying to replicate itself as much as possible. -fungi are nonphotosynthetic, they can be unicellular or multicellular, fungi gets into the human body and can get into your lungs creating many issues especially if it is toxic fungi. -Parasites rely on other organisms for food and shelter,The parasite multiplies and becomes stronger while the host grows weaker,The parasite has all of the benefits in this relationship between itself and its host. -Although all of these infectious agents are different they all have one thing in common, they can harm the human body and cause many sicknesses and discomforts. - Vocabulary. |