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.
You may already know that Binary (or Base 2) is what computers actually use to carry out calculations. Octal is Base 8, and Decimal, of course, is Base 10. And just as we have ten digits, 0 through 9, in the Decimal system, there are sixteen digits we could use for Hexadecimal (0-9 and six more).The Basics of Hex.ou may already know that Binary (or Base 2) is what computers actually use to carry out calculations. Octal is Base 8, and Decimal, of course, is Base 10. And just as we have ten digits, 0 through 9, in the Decimal system, there are sixteen digits we could use for Hexadecimal (0-9 and six more). The Basics of Hex.