Essays Tagged: "micro organisms"
Is Salt really harmful??
ng bakery products, canned and frozen foods. Salt is a good preservative that retards the growth of micro-organisms to make food storage possible for a long period of timie before refrigeration.Recent ...
Subjects: Humanities Essays > Health & Medicine
Vaccines: How they work and the 3 types
o produced the desired immunity. Inactivated vaccines are produced by killing the infection causing micro-organisms with chemicals or heat. However, most inactivated vaccines stimulate a somewhat weak ...
Subjects: Humanities Essays > Health & Medicine
Animal Health Assignment (Includes pathogens- ie. viruses, bacteria, protozoa etc. and vaccination)
eviation from the normal conditions you expect to see during an animal's life. Disease is caused by micro organisms called pathogens; these include viruses, bacteria and protozoa.VIRUSESSize: between ... ium.3) New viruses freed from dead cell to attack further bacteria.BACTERIASize: between 0.1 and 10µmCell is unique in not having:*Nuclear membrane around its single loop chromosome so there is ...
Subjects: Science Essays > Zoology
Disease Notes
ntagious-easily spreadNon-contagious eg. Oppurtunistic infectionsPathogens-disease causing organismsMicro-organisms-too small to be seenMacrorganisms-can be seen with eyeEndoparasites-live in body eg ... settle -sludge processing (solids and liquids are processed)Secondary-filtration (removal of microbes and fine mud)Tertiary-fluoridation and chlorination (add chemicals)
Subjects: Science Essays > Biology
Antibiotic resistance
Antibiotic resistance can be defined as the ability of a microorganism to destroy or be unaffected by an antibiotic, or prevent it from entering the microorg ... 95, the Centers for Disease Control and Prevention (CDC) launched a national campaign to reduce antimicrobial resistance through promotion of more appropriate antibiotic use. Antibiotics were once con ... on of more appropriate antibiotic use. Antibiotics were once considered the universal answer to all microbial diseases but the situation is changing. Increased use of antibiotics has caused the develo ...
Subjects: Science Essays > Biology
Various Uses for Radiation
lt 60 is used to sterilise syringes:Gamma rays, emitted from cobalt-60, are similar in many ways to microwaves and X-rays. Gamma rays delivered during sterilization break chemical bonds by interacting ... ything made of atoms (which is everything). And although gamma rays are highly effective in killing micro-organisms, they leave no residues nor have sufficient energy to impart radioactivity. Also the ...
Subjects: Science Essays > Physics
Identifying Micro-Organisms
AIM: to practice using some sterile techniques, to examine a range of micro-organisms found in air macroscopically and to examine a range of micro- organisms found in foo ... Methylated spirits - toxic if ingested, highly flammable. Skin irritant4. Although the micro-organisms used in the activities in this manual are considered 'safe', standard microbiologica ... incubator at 30°C for 2 days8. After two days, the number and types of colonies of the micro-organisms were recordedRESULTS:SAMPLE:NUMBER OF COLONIES:DESCRIPTION OF COLONIESCONTROL:zero:c ...
Subjects: Science Essays > Biology
Biotechnology - Fermentation products
apply only to alcoholic fermentation but to a wide range of reactions, brought about by enzymes or micro-organisms. The anaerobic respiration of glucose to alcohol or lactic acid was described as a f ... anaerobic respiration of glucose to alcohol or lactic acid was described as a form of fermentation.Micro-organisms which bring about fermentation are using the chemical reaction to produce the energy ...
Subjects: Science Essays > Biotechnology
Infectious diseases
Infectious DiseasesA communicable disease is an illness caused by micro-organisms. It is transmitted from an infected animal or person to another person or animal. It ... fected animal or person to another person or animal. It is also called a contagious disease.Not all microbes can cause disease. The ones that can are called pathogens. Pathogens have developed to infe ... s it attacks the central nervous system.BacteriaBacteria (singular: bacterium) are a major group of microscope organisms. The name bacterium was introduced in 1828, derived from the Greek word meaning ...
Subjects: Science Essays > Biology
Problem Solution: Gene One Corporation
heir cellular, subcellular, or molecular components to make products or modify plants, animals, and micro-organisms to carry desired traits" (Paugh et al, 1997, page 9). The biotechnology industry has ...
Subjects: Businesss Research Papers
Lactic Acid Bacteria
hat most people are unaware because when most hear the word 'bacteria,' their first thought is of a microscopic unicellular organism that causes various types of diseases especially if it is found in ... that causes various types of diseases especially if it is found in food. This may be true for most micro organisms, but there are some bacterial species that are essential in the manufacture of those ...
Subjects: Science Essays > Microbiology
Year 10 HIV health assignment
virus affects the body by gradually decreasing the number of T cells, which help fight off invading micro-organisms, and as a result the body develops severe immune deficiency as a result it is no lon ...
Subjects: Humanities Essays > Health & Medicine > Diseases
Genetically Engineered Food
lly from one species to another. Genetic engineering can be done with plants, animals, or even with micro-organisms. For thousands of years farmers have bred plants and animals for the traits that the ...
Subjects: Science Essays > Biochemistry
Stem cell controversy
hnology is branch of technology which is concerned with the form of industrial production that uses micro-organisms and the biology processes. Meanwhile, we have to understand that the very subtle rel ...
Subjects: Science Essays
Everglades National Park
s in the world today. They are trying to maintain and conserve the diversity of plants, animals and micro-organisms which make up our living biosphere while at the same time meeting the material needs ...
Subjects: Science Essays
Water Pollution
tances, aerobic contaminating material, plant nutrient, radioactive substances, oil, cooling water, micro-organism and so on. Main inorganic substances of water pollution are acid, alkali and some ino ... can change water's pH value, destroy its natural buffer capacity, eliminate the bacterium and other micro-organisms or suppresses its growth, affect the fishery and corrode the ships.The water in rive ...
Subjects: Science Essays > Environmental Science
Healthy foods
he size of the original parent. Genetic engineering enablesscientists to create plants, animals and micro-organisms by manipulating genes in a way thatdoes not occur naturally. However, humans have en ...
Subjects: Science Essays > Genetics & Genome Projects
Environmental Studies
s ��IntroductionBiodiversity is the variety of life for different plants, animals and micro-organisms, their genes and the ecosystems of which they are a part. Our survival totally depen ... d but we can restrict the further damage by taking some solid steps. Changes are required from very micro levels to high levels to check species extinction.Deforestation should be banned.To build more ...
Subjects: Science Essays > Engineering
Most important discovery by man
n age of antibiotics started. Antibiotics are the chemical substances which are produced by various micro-organisms and other living systems and are capable of inhibiting the growth of or killing bact ... kens PM (1991. Intracellular distribution and activity of antibiotics. European Journal of Clinical Microbiology and infectious diseases, 10(2), 100-106.Gilliam HC, Martin JR (1975). Economic importan ...
Subjects: Science Essays > Biotechnology