Ascorbic Acid, better known as Vitamin C, is comprised of six carbon, eight hydrogen, and six oxygen atoms (C6H8O6). I have chosen Vitamin C because of its importance to the immune system. Without Vitamin C, a person’s immune system would be increasingly vulnerable to diseases such as scurvy. Good sources of Vitamin C come in many everyday fruits, such as cantaloupe, oranges, kiwi, strawberries and pineapple. Vitamin C is an essential molecule for human life, and we could not live without it.