The Carbohydrate Fermentation test uses Phenol Red Broth to test for the fermentation of different sugars. It is one of the fermentation tests, others include the Methyl Red test and the Voges-Proskauer test.
The main reason why we use hexadecimal numbers is because it is much easier to express binary number representations in hex than it is in any other base number system. Computers do not actually work in hex (donât laugh, beginning students do ask that question). Lets look at an example, using a byte.
For example, the hexadecimal value F4240 is equivalent to 1,000,000 in decimal and 1111 0100 0010 0100 0000 in binary. Another place hexadecimal is used is as an HTML color code to express a specific color.For example, a web designer would use the hex value FF0000 to define the color red.he hexadecimal number system, also called base-16 or sometimes just hex, is a number system that uses 16 unique symbols to represent a particular value. Those symbols are 0-9 and A-F.