1. By: Sharan Kaur

3. Serotonin in the brain

4. Purpose The job of serotonin is to transport nerve impulse. It also is considered a happy hormone, that helps with temper, mood and depression.

5. Animals Insects Plants Fungi Humans

8. Why serotonin? Serotonin is a crucial protein in the processing of a lot of information that enters organisms, especially humans. The imbalance of the amount of serotonin can cause drastic changes is the personality of people and that is why I was interested in exploring serotonin.

9. Found in the nervous system in humans and animals Can be found in the pineal gland, brain and digestive system serotonin level drop is the major cause of depression Helps people feel satisfied after eating SSRI’s -Selective Serotonin Reuptake Inhibitors

10. Google images http://www.wisegeek.com/what-is-serotonin.htm http://www.psychologistworld.com/biological/neurotransmitte rs/serotonin.php