Transcription of CHAPTER 12 INERAL NUTRITION
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CHAPTER 12 INERAL NUTRITION
194 BIOLOGYThe basic needs of all living organisms are essentially the same. Theyrequire macromolecules, such as carbohydrates, proteins and fats, andwater and minerals for their growth and CHAPTER focusses mainly on inorganic plant NUTRITION , whereinyou will study the methods to identify elements essential to growth anddevelopment of plants and the criteria for establishing the will also study the role of the essential elements , their major deficiencysymptoms and the mechanism of absorption of these essential CHAPTER also introduces you briefly to the significance and themechanism of biological nitrogen TO STUDY THE MINERAL REQUIREMENTS OF PLANTSIn 1860, Julius von Sachs, a prominent German botanist, demonstrated,for the first time, that plants could be grown to maturity in a definednutrient solution in complete absence of soil.
12.2.2 Role of Macro- and Micro-nutrients Essential elements perform several functions. They participate in various ... During cell division it is used in the synthesis of cell wall, particularly as calcium pectate in the middle lamella. It is also needed during the ... Since each element has one or more specific structural or functional role ...
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