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.
In hex you need two digits where you need 8 binary digits to represent a byte. Hexadecimal is also used in the Red-Green-Blue color system in computers. Red, green, and blue are each represented by a byte that is two hex digits. An RGB color uses six hex digits. Hexadecimal is also commonly used to represent computer memory addresses.