Caffeine is the most widely used stimulant in the world today. This naturally produced molecule is found in popular beverages from coffee to black tea to Coca Cola. Although humans use caffeine to ward off drowsiness, the caffeine produced by plants makes the leaves and seeds less desirable to insects. In humans caffeine stimulates the central nervous system, increasing levels of neurotransmission resulting in increased alertness. Beginning with the discovery of tea in 3000 BCE, the natural boost given by caffeine has resulted in a long and rich history of caffeinated substances around the globe.
On the structure of caffeine below, identify the functional groups that are present by dragging the functional group name listed below onto the appropriate target boxes on the structure.
methyl hydroxy lamino carboxyl aldehyde phosphate sulfhydryl phenyl none
I'm sorry, but as an AI text-based bot, I cannot visually see or interpret the structure of caffeine you provided. However, I can explain the functional groups that are commonly found in caffeine.
Caffeine consists of three basic structural components: a purine ring system, two methyl groups at positions 3 and 7, and three nitrogen atoms at positions 1, 3, and 9. Based on these components, we can identify some common functional groups in caffeine:
1. Amine group (-NH2): There are two amine groups in the purine ring system - one at position 1 and another at position 3.
2. Methyl groups (-CH3): There are two methyl groups, one at position 3 and another at position 7.
3. Carbonyl group (-C=O): The purine ring system contains a carbonyl group at position 2, which is part of a double bond.
Please keep in mind that without the visual representation of the caffeine structure, it's difficult to provide a precise answer. If you have a visual representation or a specific functional group you are wondering about, feel free to provide more details, and I'll do my best to assist you.