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A. CARBOHYDRATES

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                  BIOMOLECULES -  A.Carbohydrates Carbohydrates are often known as sugars, they are the 'staff of life' for most organisms. They are the most abundant class  of biomolecules in nature, based on mass . Carbohydrates are also known as saccharides, in Greek  sakcharon  mean sugar or sweetness. They are widely distributed molecules  i n plant ans animal tissues . In plants, and arthropods, carbohydrates from the skeletal structures, they also serve as food reserves in plants and animals. They are important energy source required for various metabolic activities, the energy is derived by oxidation. Plants are richer in carbohydrates than animals.  Carbohydrates Definition- Carbohydrate is a organic compound, it comprises of only oxygen, carbon and hydrogen. The oxygen:hydrogen ratio is usually is 2:1. The empirical formula being  C m (H 2 O) n   ( where  m  can be different from  n ) . Carbohydrates are hydrates of carbon, technically they are polyhyd
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2.Square and Square root of a Number -General Aptitude

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        Square and Square root of a Number  Let’s see how we can find square of a number faster using Vedic Mathematics (Nikhilam method) Example 1: Find square of  12 12 Step 1 10 10  is the nearest power of  10 10  which can be taken as our base. The deviation to our base  = 12 − 10 = 2 = 12 − 10 = 2  (To find the deviation, just remove the leftmost digit " 1 1 " and you will get it quickly) Left side of the answer is the sum of the number and deviation. Hence, left side of the answer  = 12 + 2 = 14 = 12 + 2 = 14 Step 2 Our base  10 10  has a single zero. Therefore, right side of the answer has a single digit and that can be obtained by taking the square of the deviation. Hence, right side of the answer  = 2 2 = 4 = 2 2 = 4 Therefore, answer  = 144 = 144 Example 2: Find square of  13 13 Step 1 10 10  is the nearest power of  10 10  which can be taken as our base. The deviation to our base  = 13 − 10 = 3 = 13 − 10 = 3  (To find the deviation, ju
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