Uncle mel mentioned having difficulty sleeping. if he was prescribed a medication that targeted serotonin, such as a ssri (selective serotonin reuptake inhibitor), it would also with sleep. there is another chemical secreted in the brain that causes sleepiness. it is characterized as a hormone rather than a neurotransmitter. name this hormone.

The hormone is seretonin.

Explanation:

Seretonin is a hormone that is synthesized from the hydroxylation of amino acid tryptophan resulting in the formation of 5-hydroxytryptophan which further undergo de carboxylation to form seretonin.

 Seretonin is found in both myentric neuron and seretogenic neuron.Seretonin helps to control mood,desire for food and sleep.

  Selective seretonin reuptake inhibitors are used as antidepressent that interfere with the re absorption of seretonin thereby maintaining high level of seretonin in the synapse.

one is through turgidity. this occurs before ground tissue ( collenchyma

and sclerenchyma cells) become well

developed to give structural support to the plant as it grows bigger. the xylem

tissue (composed of rigid tissue) of the young

plant render this support and also maintaining osmotic turgidity of the surrounding

plant cells.

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