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.
Two types of carbohydrates, in sort of a high level grouping, can be broken down into simple and complex carbohydrates.Some simple carbohydrate are table sugar and glucose, w â¦ hile more complex carbohydrates are something starchy, like pasta and other grain foods.Complex carbohydrates like starch are simply polymers of shorter monomer units like glucose. Another type of carbohydrate is fibrous carbohydrates, such as fiber.wo types of carbohydrates, in sort of a high level grouping, can be broken down into simple and complex carbohydrates.