how we can say wbc protect from disease causing micro organism
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Objectives
To understand how microorganisms cause disease, you should be able to:
Compare and contrast the states of infection and disease.Identify ways to avoid infection by pathogens that use direct and indirect transmission methods.Explain three different methods of indirect transmission of pathogens.Describe how bacteria cause disease.Describe how viruses cause disease.Explain how exotoxins and endotoxins cause disease.
Vocabulary
bacteria–one-celled, prokaryotic organisms which are involved in fermentation, nitrogen fixation, and infectious disease.
disease–a condition in which the body cannot function normally due to infection by a pathogenic agent, genetic condition, nutritional deficiency, or an illness of an affected body organ.
endotoxin–poisons that are part of the bacterial cell wall that are released when the bacteria adheres to a host cell.
exotoxin–a poison excreted by a microorganism.
immune system–a body system that protects against disease and foreign substances, destroys infected cells, and removes cellular debris.
infection–a condition in which an infectious agent invades the body and begins to multiply.
inflammation–redness, swelling, pain and tenderness around an area of the body due to an infection or injury.
microorganism–an organism too small to be seen without a microscope.
pathogen–any disease-causing agent.
phagocytosis–the process of engulfing a smaller cell, microorganism, or foreign particle.
transmission–any mechanism by which an infectious agent is spread to a host.
virus–an infectious agent that multiplies only within the cells of living hosts; composed of RNA or DNA and a protein coat; more complex viruses also have a surrounding envelope.
To understand how microorganisms cause disease, you should be able to:
Compare and contrast the states of infection and disease.Identify ways to avoid infection by pathogens that use direct and indirect transmission methods.Explain three different methods of indirect transmission of pathogens.Describe how bacteria cause disease.Describe how viruses cause disease.Explain how exotoxins and endotoxins cause disease.
Vocabulary
bacteria–one-celled, prokaryotic organisms which are involved in fermentation, nitrogen fixation, and infectious disease.
disease–a condition in which the body cannot function normally due to infection by a pathogenic agent, genetic condition, nutritional deficiency, or an illness of an affected body organ.
endotoxin–poisons that are part of the bacterial cell wall that are released when the bacteria adheres to a host cell.
exotoxin–a poison excreted by a microorganism.
immune system–a body system that protects against disease and foreign substances, destroys infected cells, and removes cellular debris.
infection–a condition in which an infectious agent invades the body and begins to multiply.
inflammation–redness, swelling, pain and tenderness around an area of the body due to an infection or injury.
microorganism–an organism too small to be seen without a microscope.
pathogen–any disease-causing agent.
phagocytosis–the process of engulfing a smaller cell, microorganism, or foreign particle.
transmission–any mechanism by which an infectious agent is spread to a host.
virus–an infectious agent that multiplies only within the cells of living hosts; composed of RNA or DNA and a protein coat; more complex viruses also have a surrounding envelope.
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wbc are also known as the protecter of body they fight with the. micro organosm come in the qnd prevent to cause any infection or disease
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