The function of a capsid‚ in virus biology‚ is to serve as a protective outer layer that protects the genetic material of the virus from the host’s defensive cells. The capsid is made up of proteins. The nucleic acid is what is contained within the capsid‚ which is a group of long‚ linear macromolecules‚ consisting of either DNA or RNA. There are two different cycles in which the virus uses a host cell to replicate and reproduce itself. These two cycles are known as the lytic cycle‚ and the lysogenic
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sharps-related injuries which expose workers to bloodborne pathogens continues to be an important public health concern. Workers in many different occupations are at risk of exposure to bloodborne pathogens‚ including Hepatitis B‚ Hepatitis C‚ and HIV/AIDS. First aid team members‚ housekeeping personnel in some settings‚ nurses and other healthcare providers are examples of workers who may be at risk of exposure. Bloodborne Pathogens is addressed in standards specifically for the general industry
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Antimicrobial Agents Lisette Vazquez October 27‚ 2013 Antimicrobial Agents Antimicrobial agents are utilized to kill microorganisms that cause infections. In order to be able to kill these microorganisms we must have an understanding of the factor associated with the infection. The purpose of this paper is to explore the different types of antimicrobial agents and the differences between viral and bacterial infections. Antimicrobial Agent Categories There are several antimicrobial agents to treat
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My last name is everything to me. It sets me apart from most people in the world‚ and shows that I am part of a strong family. Also‚ my last name illustrates facts about my ancestors‚ where my family originated‚ and even what they have accomplished. If I proposed to the perfect girl and she said "yes‚" but only if she could keep her last name; we would have to have a long chat about this decision. I feel very strongly about the idea that my wife should have my last name‚ but I understand
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Bacterial Contamination April 15‚ 2013 Bacteria Contamination The definition of bacterial contamination is food contamination refers to foods that are spoiled or tainted because they either contain microorganisms‚ such as bacteria or parasites‚ or toxic substances that make them unfit for consumption This is very serious and people should take more precaution‚ food contamination is a serious because it results in foodborne diseases that each year affect an estimated seventy-six million
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The causes of disease in humans. Lifestyle 1. BIOL1 : Basis and risk factors of heart disease 2. BIOL1 : Basis of lung disease and lung function Pathogens 3. BIOL1 : Nature of pathogens and infection 4. BIOL1 : Cholera and dehydration 5. BIOL2 : Horizontal gene transfer and antibiotic resistance Genetics 6. BIOL1 : symptoms of lactose intolerance 7. BIOL2 : Formation of non-functional enzymes 8. BIOL5 : Risk factors for cancer‚ the nature of cancer‚ tumours suppressor and proto-oncogenes
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Viruses & Bacteria Title: Kirby-Bauer Method of Antibiotic Effectiveness Purpose: The purpose of this lab was to determine the effectiveness of certain antibiotics and determine their zone of inhibition Data: Name of Antibiotic Zone of inhibition (mm) Effectiveness Streptomycin 15mm Sensitive Chloramphenicol 29mm Sensitive Novobiocin 20mm Intermediate Neomycin 13.5mm Intermediate Tetracycline 22mm Sensitive Analysis: 1. Which antibiotic was the most effective? The most
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Bacterial Smears Are Fixed before Staining to? Answer It is important to heat fix the bacterial smear before staining so as to‚ kill the bacteria‚ firmly adhere the smear on to the microscopic slide to prevent washing off during staining‚ and to allow the sample to readily take up the stain. Reference: www2.hendrix.edu What is the purpose of heat- fixing the smear? It helps the cells adhere to the slide so that they can be stained. The purpose of heat fixing is to kill the organisms without
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Alzheimer’s disease is a deterioration of the brain that happens in middle or old age. It is the most common cause of premature senility and dementia‚ which is a loss of cognitive functioning (thinking‚ remembering‚ and reasoning). Dr. Alois Alzheimer discovered the disease in 1906 as he was doing an autopsy on a woman’s brain in which he discovered abnormalities. Alzheimer’s causes the brain to shrink in size‚ which causes all of the cognitive issues. Scientists today still do not fully understand
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Pathogen Project #7 Salmonella 1) What type of microbe: G - bacterium 2) What is the natural habitat of your pathogen‚ that is‚ where does it reproduce or what is the reservoir? Animals are the main reservoir for Salmonella. It also lives on eggs‚ raw meats‚ unpasteurized milk‚ fruits‚ and vegetables. 3) What disease it causes – that is‚ the MAIN disease it causes: The primary disease Salmonella causes is gastroenteritis. Gastroenteritis causes bloating‚ abdominal cramping and most commonly
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