The Nature of Disease Causing Organisms
- Length: 446 words (1.3 double-spaced pages)
- Rating: Excellent
The nature of DISEASE CAUSING ORGANISMS and the mechanisms employed by man to combat these organisms.
What is disease? A disease is a disturbance in the normal structure or function of an organism, group of organisms or the entire body. Diseases affect different organisms in different ways, they may be temporary, they may be chronic, or they may be terminal. They may even be localized or widespread through an entire body. Many diseases have been eradicated, but, some have no cure. Humans and other vertebrates have a system of specific immunity to combat disease. Some disease causing organisms invade body tissues and then destroy them, while others setup a symbiotic relationship with the cells. Most communicable diseases are caused by microorganisms or larger parasites that are commonly called germs, most scientists call them pathogens.
What kinds of disease are there, that are caused by organisms?
-Infectious disease- caused by living organisms, can be passed by contact.
-Viral disease- caused by viruses, difficult to treat because viruses are non-living
-Fungal disease- usually cause mild infections, difficult to treat
-Protozoan disease- the "tropical diseases" caused by protozoa
-Worm infections- mostly in the tropics, worms inside body causing damage
-Diseases can be caused by a wide variety of bacteria, viruses, fungi, protozoans, and parasitic worms. Some sferre some disease causing organisms, and how do they affect plants? Plant diseases can be caused by microorganisms, parasitic flowering plants, nematodes, viruses, or adverse environmental conditions. Bacterial diseases are marked by symptoms such as soft rot, leaf spot, wilt of leaves and roots, cankers, leaf and twig blight, and gall formation. Most plant diseases are caused by fungi. Fungal diseases have been documented on since biblical times. Fungal diseases are characterized by leaf spots, ulcerous lesions, blights, powdery mildew, cankers, root rots, wilts, and club root. Viral diseases are infectious and spread largely by insects. All economic plants suffer from one or more viral diseases. Symptoms include mosaic patterns, yellowing of foliage, vein clearing, ring spots, stunting and premature death, malformations and overgrowth. Nematodes, or roundworms, are a large cause of disease in plants. They live in and cause damage to the roots, stems, leaves, and bulbs of plants.
How to Cite this Page
|The Nature and Consequences of Enterococcus Organisms Essays - Bacteria are microorganisms that make up a sizeable domain of prokaryotic organisms. Bacteria are exceptionally adaptable to conditions and can differ in, morphologies: ranging from cocci, bacilli, vibrio and spirochaetes, they are typically a few micrometres in size. The wide variety of shapes is determined by the cell wall and cytoskeleton composition, it is important as it can influence the bacteria’s ability to acquire nutrients, motility and attach to surfaces forming biofilms. Many bacteria exist simply as single cell organisms but can have other forms, diploids (pairs), streptococcus (chains) and staphylococcus (clusters).... [tags: bacteria, disease, identification]||914 words|
| An Experiment on Bacteria--Microscopic Organisms Essay - Introduction Bacteria--microscopic organisms present in virtually every habitat on Earth. They are found in water, soil, and even the air we breathe. Bacteria reproduce rapidly and exist in any place conducive to their survival. Although their omnipresence is intimidating from a survival standpoint, the vast majority of bacteria are harmless. Those few that are infectious, disease-causing agents are known as pathogens. Despite their negligible size, these organisms can be lethal when they infect living things.... [tags: antibiotics, bacteriophages]|
:: 15 Works Cited
| Genetically Modified Organisms Essay - Did you know that Genetically Modified Organisms are found in sixty to eighty percent of processed foods and that the United States Food and Drug Administration does not test any of these foods beforehand to see if they are safe to consume. (Wohlers 73). Genetically Modified Organisms are defined as organisms whose DNA has been changed in a way that would not naturally occur. The purpose of developing these genetically modified organisms was to improve produce by creating an increased tolerance to disease.... [tags: Processed Food, Food and Drug Administration]|
:: 6 Works Cited
| Genetically Modified Organisms and Human Life Essay - Over 80% of the food we eat has some variation of genetic modification Genetically Modified Organisms (GMO) a term that has been growing in popularity and with popularity comes controversy. the practice of Genetic modification is generally practiced in the food industry but aspects of genetic modification are found tested in animals. Food over the years has changed due to the technique of genetic modification where genes from other organisms are implanted within a given organism. The use of genetic modification in our food has stirred controversy over the topic rightly so with anything that grows in popularity.... [tags: superfoods, gluten, crops]|
:: 3 Works Cited
| Genetically Modified Organisms Changing our Climate Essay - Genetically Modified Organisms Changing our Climate Introduction “Genetically Modified Organisms”, or in other words GMO, is a method of altering mirco-organisms which include plants, fish, yeast, bacteria and mammals. These organisms have been engineered with increased carbon capacity and a smaller need for nitrogen fertilizers. These organisms are made from the DNA of bacteria and the DNA of other plants and animals. Thus genetically diverse, these various combinations cannot naturally happen in nature.... [tags: threatening natural processes]|
:: 7 Works Cited
| Genetically Modified Organisms are a Solution to the War on Hunger Essay - Genetically Modified Organisms are a Solution to the War on Hunger Over the course of this speech, sixty people will die. Imagine all of your friends and family gone within the next five minutes. Imagine the classroom next door, gone, and imagine our class, gone. Every four seconds another person dies from hunger. 21,000 people die every day. That’s 7.5 million people each and every year (“World Hunger Statistics” 1). Why is it now that enhancing foods is a problem. Why is it, that people oppose the production of these foods as the amount of hungry people in the world number nearly a billion (Diamandis and Kotler 100).... [tags: GMO, food shortage]|
:: 7 Works Cited
| Bioaccumulation and Biomagnification: Minamata Disease Essay - Bioaccumulation and Biomagnification: Minamata Disease History of Minamata Disease. In 1908 the Chisso Corporation, a major chemical manufacturer in Japan, opened a nitrogenous fertilizer factory in the small fishing town of Minamata (figure 1). Over time the corporation chose to branch out and began producing other chemicals such as acetylene, acetic acid, vinyl chloride and octanol. The waste product from these chemicals was released into Minamata Bay via the factories wastewater system, causing major damage to the fisheries; reducing their catch sizes by up to 91%.... [tags: toxins in the environment]|
:: 14 Works Cited
|Environment in Silent Spring by Rachel Carson Essays - In the introduction of “Silent Spring” written by Rachel Carson in 1962, more than 50 years ago the writer attempts to warn us that human beings will end by destroying the earth in the opening quote. She shows that human beings are causing harmful effects to the environment and the environment becomes polluted day by day. First, to lead to the issue, the author starts with a fable. She describes a beautiful natural town, but then the appearance of human beings brought a strange blight and everything began to change.... [tags: farming, organisms, toxic production]||521 words|
| Genetically Modified Food [GMF] Essay - Everything in our live have two sides: one is good and another one is bad. It is hard to find perfect things. The genetically modified (GM) foods like other things have both sides which are good and bad in the same time. Now, GM foods are a big debate if it is good or bad for people’s health. The GM Foods mean food that produced from organic that had specific changes introduced into their DNA using the methods of genetic engineering. Even though GMF are causing damage environment and affecting on original farmers, in general most GMF have some advantages.... [tags: Neutral Disease, Nutrition Issues]|
:: 10 Works Cited
| Disease Organisms Essay - Disease Organisms By Section 1 Part A: i) Disease: A disease is an impairment of normal bodily functions caused by infection or stress. It produces symptoms such as illness or general sickness. Parasitism: A symbiotic relationship between a parasitic organism and its host. The parasite benefits from the relationship but the host is usually harmed. The parasite will derive nutrition from their host and may gain other benefits such as shelter. Parasititism differs from parasitoidism in that the host is never deliberately killed by the parasite.... [tags: Pathology Definitions]|
:: 6 Works Cited
Organisms Disease Infectious Disease Worms Microorganisms Fungal Fungi Treat Living Organisms Leaf
Non parasitic diseases are attributed to weather conditions.
What are some disease causing organisms that affect animals? These diseases are of great importance to humans, they could affect animals that are used for, or produce food. Some of these diseases may even be transmitted to humans. Many microorganisms exist peacefully inside animals, some of the symbiots are even benificial to the animals that they live inside. Other microorganisms, pathogens, cause disease in animals. These pathogens include bacteria, viruses, fungi, prions, and other parasites.
...HumanDisease Several scientific terms are relatively easy to define, others tend to be more difficult; “health” and “disease” fall under the latter category. Many suggest that “disease” is merely a disorder of a system’s normal functions while “health” is the absence of disease. On the other hand, could a person whose bodily systems are functioning properly but who is unhappy or depressed be considered healthy? Can an alcoholic or drug-addict whose habit has not as yet caused any physical harm be likewise described? Without a doubt, health is more than just a well-being physically; it involves social and mental well-being as well. Health clearly being difficult to define and understand, “disease” is thought to be even more complex. Doctors, scientists, and researchers try enduring the problem in classifying diseases. Although a number of diseases fit neatly and entirely into one category, some seem to belong to more than one group and nevertheless some even combine elements of all types. Having all this in mind, six categories are frequently recognized: infections, inherited, degenerative, mental, human inflicted, and deficiency. From these six categories, “any disease may be acute…or chronic” (Susan 627). When a disease is acute, it means that it may appear suddenly and have a short time period while a...