WebChemically, protoplasm consists of inorganic and organic matters. Among inorganic parts are included water, gas, salts etc. and organic matters are grouped into various proteins, carbohydrates, fats and other regulatory substances. The dry protoplasm shows 45% proteins, 25% carbohydrates, lipids 25% and 5% other substances. WebOn this basis, the principal classes of alkaloids are the pyrrolidines, pyridines, tropanes, pyrrolizidines, isoquinolines, indoles, quinolines, and the terpenoids and steroids. Alternatively, alkaloids can be classified according to …

31.1B: The Chemical Composition of Plants - Biology LibreTexts

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