Cert_Bio II - Body Defence 93 39. Which of the following are concerned with the prevention of bacterial infections in different parts of the human body? Alimentary canal Respiratory tract Blood A. digestive enzymes hair white blood cells B. mucus cilia red blood cells C. acid mucus blood platelets D. bile salts mucus white blood cells 94 Directions: Questions 48 and 49 refer to the graph below which shows the changes in the concentration of antibodies in the blood of
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could happen anywhere; locally‚ states‚ large counties track the incidences and occurrences of disease) Pathology – scientific study of disease. Pathogenesis – the manner in which a disease develops Pathogen – disease causing organism (from worms to prions‚ viruses‚ or bacteria) Pathogenicity – the ability of a microorganism to cause disease by overcoming the defenses of a host Pathologist – one who examines diseased tissue
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carrying harmful bacteria (pathogens) from a source to the food. The source or reservoir is where the contamination originates from‚ for example‚ humans‚ raw food‚ rodents‚ dust and soil. In the context of cross-contamination‚ a vehicle is a substance‚ object or living thing that moves the contaminant away from its source to the food. The vehicle could either be stationary or a mobile vehicle. A vector is an organism‚ usually a bird or an insect‚ that transmits a pathogen from one place to another
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UNICEF PROMOTION OF HOUSEHOLD WATER TREATMENT AND SAFE STORAGE IN UNICEF WASH PROGRAMMES January 2008 PROMOTION OF HOUSEHOLD WATER TREATMENT AND SAFE STORAGE IN UNICEF WASH PROGRAMMES Why is household water treatment and safe storage an important intervention for preventing disease? Unsafe drinking water‚ along with poor sanitation and hygiene‚ are the main contributors to an estimated 4 billion cases of diarrhoeal disease annually‚ causing more than 1.5 million deaths‚ mostly among children
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Allium spp. responded with growth promotion on AMF inoculation. Onion plants inoculated with AMF (Glomus intraradices or Glomus versiforme) grown in pots with mineral soil with higher biomass than non-inoculated plants and reached marketable size (>25 mm bulb diameter) 1-2 weeks earlier than those (5). These AMF inoculation causes bulb development of onions (5). Mycorrhizal inoculation lead to 22% increase yields of onions compared to controls. Mixed application of mycorrhizal inoculation‚ humic
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Regulations Applied to Fish by the Major Importing Countries Frazier WC‚ Westhoff DC (1988). Food Microbiology. 4 th Kvenberg EJ (1991).Non-indigenous Bacterial Pathogens‚ In: Microbiology of Marine Food Products Obi SKC‚ Krakowiaka A (1983). Theory and Practice of Food Microbiology (Unpublished manual). Rodricks EG (1991). Indigenous Pathogen: Vibrionaceae of Microbiology of Marine Food Products Sakazaki R. Shimad T (1986). Vibro species as Causative Agent of Food-Borne Infection Silliker J H‚ Gabis
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Exam 2 Study Guide Bio 202 Chapter 13 Differentiate a virus from a bacterium Describe the chemical and physical structure of both an enveloped and a nonenveloped virus. (Include a description of the envelope‚ capsid‚ and core The nucleic acid of a virus is protected by a protein coat called the capsid. The structure of the capsid is ultimately determined by the viral nucleic acid and accounts for most of the mass of a virus‚ especially of small ones. Each capsid
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Organic or not? Everyone wants to live a healthy life‚ but what if the food people are eating on a daily basis is actually hurting them more than they realize? People in America are trying to be more aware of what they eat because of a growing epidemic known as obesity. They are buying healthier foods and working out more‚ but it is not enough. People who buy vegetables‚ lean meats and other healthy choices are not eating what they should. Normal vegetables and meat from animals are packed with
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Should childhood vaccination be mandatory? Vaccination protects your child from preventable diseases and will keep your child healthy. In this day and time‚ there are many diseases that are preventable with a safe and effective vaccine that has been FDA approved. In any vaccination there are some risks you are taking because some children have reactions to the vaccine. Many parents do not realize the effects of not vaccinating their child. This can cause serious risks and even put the child’s life
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specific defenses? A= It distinguishes between “self” and “other”‚ and they inactivate or kill any foreign substance or cell that enters the body. 114. What is the immune response? A= The body’s specific recognition‚ response‚ and memory to a pathogen attack. 115. What is an antigen? A= Any foreign substance that can stimulate an immune response. 116. What is an
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