Answer:
Let's start with, What Is Digestion?
- Digestion is the complex process of turning the food you eat into nutrients, which the body uses for energy, growth and cell repair needed to survive. The digestion process also involves creating waste to be eliminated.
Explanation:
There are actually <u>six </u>activities involved within the digestion process. They are called and know as ingestion, motility, mechanical digestion, chemical digestion, absorption, and defecation.
Now to get deeper into what each activity does within the system would take a long time to explain. The main thing you need to know about digestion is that it ingests [meaning it takes things in] and digests [breaks down what you gave in] food, absorbs released nutrients, and excretes food components that are indigestible.
1. Always tired
2. Always aggressive
3. Never reasonable
4. Constantly denying that he/she is an alcoholic
5. Beer bottles everywhere
Answer:
Adenosine.
Explanation:
Adenosine is a neurotransmitter that is created in the brain and when it binds to the adenosine receptors, it slows down nerve activity and it creates a sensation of drowsiness.
<u>Caffeine</u> looks like adenosine to the receptors, therefore, when we have caffeine, <u>it binds to these receptors and there is no room left for the adenosine to bind</u>. However, the caffeine doesn't slow down nerve activity but, in the contrary, it speeds it up.
Therefore we can tell that caffeine blocks the receptors for the adenosine thus promoting wakefulness.
