SEROTONIN SYNTHESIS

Question 1

what is the rate limiting step for 5-HT synthesis?

Answer 1

tryptophan from diet

Question 2

what are the steps in the synthesis of serotonin?

Answer 2

tryptophan
5-hydroxytryptophan
serotonin

then,

serotonin catabolism to 5-hydroxyindole acetic acid

or

serotonin is converted to melatonin linked to the circadian rhythm and reproduction