SCIENCE - FORM 2 Nutrition CLASSES OF FOOD 1. Food is a basic necessity for all living things. 2. Food is important in order to : (a) Provide energy to carry out physical activities. (b) Provide energy for the physiological activities in life such as reproduction‚ digestion and excretion. (c) Build new cells and ti repair tissues in the body.
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Dysphagia and dehydration after a Stroke: A Literature Review Background. Stroke is a major cause of mortality in the United Kingdom; it is the third biggest killer in the UK (National audit office 2005) around 53‚000 people die every year from this long term condition. (Scarborough et al 2009) In people under the age of 75 it is a main cause of premature mortality with 1 in 20 dying because of an acute stroke and the complications that arise. In socially deprived areas a person is 3 times more
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into nitrates‚ which is carried to the earth. The second form of nitrogen fixation is Industrial fixation‚ which is a process that converts nitrogen to ammonia (NH3). Ammonia can be used directly as a fertilizer‚ but most of it is further processed to urea and ammonium nitrate (NH4NO3) . The usable nitrogen will take 2 forms: nitrate and ammonium. Plants then take up nitrate and ammonium‚ get lost in the subsoil or atmosphere‚ or are changed in the soil. The last form of nitrogen fixation is Biological
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when he accidentally mixed ammonium nitrate and water and witnessed and endothermic reaction. A modern instant cold pack is a device that consists of two bags; one containing water‚ inside a bag containing ammonium nitrate‚ calcium ammonium nitrate or urea. When the inner bag of water is broken by squeezing the package‚ it is allowed to dissolve the solid in an endothermic reaction. An endothermic reaction is a process where something absorbs energy that is usually in the form of
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Human Anatomy Word Meanings - Forearm: antebrachial Ear : otic Heal of foot: calcaneal Back of lower skull: cephalic Neck: cervical Front of the knee : patellar skin: dermis Cheek (inside): buccal Area behind the knee: popliteal Whats my structure? : Rough or Smooth: Endoplasmic reticulum Contains enzymes and breaks down harmful substances : Peroxisomes Houses the genetic code: nucleus Acts like a framework to supports cell : cytoskeleton area between anus and genital: perineal
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Citrate Bile Salts Sucrose is the media used for isolation of Vibrio cholerae 9. Pseudomonas aeruginosa is an oxidase positive‚ non-lactose fermenter. True False 10. For the following Enterobacteriaceae fill in the missing reactions Urea ONPG Lactose Citrate Indole LDC E. coli a. - + b. +
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B‚ D‚ D‚ B‚ B‚ C‚ C‚ B‚ C‚ C‚ C‚ C‚ C‚ A‚ D‚ B‚ C‚ A‚ D Amylase -drawing- Hydrolysis i) Digestion ii) Absorption 1. Reduces cholesterol level in the blood 2. Does not cause coronary heart disease It cannot be digested E i) 2 hours ii) stomach It has an acid resistant coat‚ hence the acid in the stomach will not be able to dissolve its coat and the drug will not be released. It also has a permeable coat which tends to stick to the mucus‚ hence it will move down the alimentary
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POLLUTION FROM DIESEL ENGINES AND ITS CONTROL Diesel engines and gasoline engines are the most widely used primary sources of power in automobiles and the sheer number of them makes the issue of emissions from these engines an important one. Table 1 gives a comparison of the amounts of different pollutants in the exhaust of diesel and petrol engines. FORMATION OF NOX AND CONTROL METHODS: The main source of NOx in diesel engine emissions is the oxidation of the nitrogen in the air at the high temperatures
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"Explain the concept of homeostasis with reference to the control of heart rate‚ breathing rate‚ body temperature and blood glucose levels" P5 Homeostasis is where the body keeps a constant internal environment. This involves all the metabolic processes taking place In the body as well as the blood‚ tissue fluid and all the contents in the body ’s cells. There are a range of variables from heart rate to the blood glucose levels that the body will take into account. Negative feedback will occur
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Constraints in livestock sector in Pakistan LIVESTOCK IS an important sector in agriculture. It represents 52.2 per cent of agricultural value added and contributes 11 per cent to the Gross Domestic Product (GDP). Some 30-35 million rural people depend directly or indirectly on livestock f or their livelihood. It has potential to absorb more rural labour to reduce rural poverty if proper attention is given to this sector. Pakistan is proud to be the f if th largest milk producer in the world. In
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