However, in the form of N2, nitrogen is unusable by all organisms except for a few primitive bacteria that are capable of converting N2 gas to ammonia (NH3). This process of conversion is called nitrogen fixation, and makes the nitrogen available for use by organisms.
1 Simple carbohydrates are often used as building blocks of larger, complex carbohydrates. 2  The empirical structure of simple carbohydrate is C 6 H 12 O 6 or (CH 2 O) 6 while that of complex carbohydrate is (C 6 H 10 O 5) n, in which ânâ is the number of monomer units.
There are two types of simple carbohydrates: monosaccharides and disaccharides. consist of only one sugar, and examples include fructose, galactose and glucose. sucrose. yoghurt, candy, chocolate, fruit, fruit juice, cake, jam, biscuits, molasses, soda and packaged cereals. Despite the fact that simple carbohydrates do not contain enough essential nutrients, some foodstuffs such as fruits may still be good for you. Complex Carbohydrates Complex carbohydrates consist of a chemical structure that is made up of three or more sugars, which are usually linked together to form a chain.