GCSE Biology for teaching from September 2011 onwards (version 1.1) 3.3 Unit 1: Biology 1 B1.1 Keeping healthy Subject Content A combination of a balanced diet and regular exercise is needed to help keep the body healthy. Our bodies provide an excellent environment for many microbes which can make us ill once they are inside us. Our bodies need to stop most microbes getting in and deal with any microbes which do get in. Vaccination can be used to prevent infection. Candidates should use
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Microbiology UNKNOWN LAB REPORT Kateryna Petrakova INTRODUCTION Microorganisms cause a great amount of diseases. For healthcare providers it is very important to be aware of what organisms are pathogenic and cause a disease and‚ therefore‚ to find an appropriate treatment. Different microorganisms require various environments in order to replicate and to become dangerous for a person’s health. An integral part of any medical treatment is to be able to recognize and
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is the largest category of pollutants? - Conventional What are the 6 categories of conventional pollutants? - Biochemical oxygen demand‚ suspended solids‚ pH‚ Nutrients‚ oil and grease‚ pathogenic microorganisms What is biochemical oxygen demand? - The amount of oxygen microorganisms need to break down the organic matter in the water (this is why they aerate the tanks at the wastewater treatment plant) What happens in the water if the organic matter goes up? - The oxygen is going to
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How is Vitamin C manufactured? Ascorbic Acid Also known as: l-ascorbic acid‚ vitamin C‚ ascorbate A six carbon compound related to glucose. It is found naturally in citrus fruits and many vegetables. Ascorbic acid is an essential nutrient in human diets‚ and necessary to maintain connective tissue and bone. Its biologically active form‚ vitamin C‚ functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant. http://pubchem.ncbi.nlm.nih.gov/summary/summary
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RESEARCH PAPER ON BIOLOGICAL ACTIVITY OF ACTINOMYCETES ................ ABSTRACT: The microorganisms are ubiquitous in nature. They are found in probably every environmental condition present on earth. Actinomycetes were originally considered to be an intermediate group between bacteria and fungi but now are recognized as prokaryotic organisms with high G+C (>55%) content in their DNA. Our project aim is to evaluate some biological activities of Actinomycetes like:
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The Search for better health – notes on all parts except first hand pracs • Discuss difficulties in defining the terms health and disease. Health is defined as the complete physical‚ physiological‚ mental and social wellbeing of an organism. It is not merely the absence of disease. Disease can be defined as a state which prevents correct functioning or impairs bodily function. It is difficult to define these terms as they are very subjective and dynamic‚ i.e. they differ from person
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Prevention Strategies of Communicable diseases Methods of Control Communicable diseases occur only when the causative agent comes into contact with a susceptible host in a suitable environment. Prevention and control efforts for communicable diseases may be directed to any of these three elements. Communicable diseases affect both individuals and communities‚ so control efforts may be directed at both. Treatment of persons with communicable diseases with antibiotics typically kills the agent and
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According to Thomashow‚ L.S and Weller (1995)‚ antibiotics defined as a chemically heterogeneous group that small organic molecules of microbial origin that at low concentration‚ are deleterious to the growth or metabolic activities of other microorganisms. A more interesting definition from Dutta and A.C (2005) that antibiotics as a miracle drugs of modern times that act as magic bullets shooting down the infective organisms that have invaded the human body and caused infections. From Sommer and
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Identification of Bacterial Pathogens basic skills in diagnostic bacteriology Dr.T.V.Rao MD Dr.T.V.Rao MD 1 Identification of Microorganisms • For many students and professionals the most pressing topic in microbiology is how to identify unknown specimens. • Why is this important? • Labs can grow‚ isolate and identify most routinely encountered bacteria within 48 hrs of sampling. • The methods microbiologist use fall into three categories: ♣Phenotypic- morphology (micro and
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activities Main differentiation Resource sheets BTEC Links 3.1 Describe biotechnology as the alteration of natural biomolecules using science and engineering to provide goods and services 3.2 Describe a fermenter as a vessel used to cultivate microorganisms for the production of biomolecules on a large scale 3.3 Explain the need to supply suitable conditions in fermenters and the effect they have on growth rates‚ including: a) aseptic precautions b) nutrients c) optimum temperature d) pH e) oxygenation
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