Melatonin is a hormone made by the pineal gland. People take melatonin to treat sleep disorders as it is known to function in training the circadian rhythm in humans. Chemically, it is a hydroxylated, decarboxylated, acetylated and methylated tryptophan molecule. To which class of hormones would it belong?
a. lipid-derived
b. peptide
c. amino acid-derived
d. glycoprotein
c. amino acid-derived
You might also like to view...
The change in Gibbs free energy for a particular reaction is MOST useful in determining
A) the amount of energy catalysts required for biosynthesis or catabolism. B) the potential metabolic reaction rate. C) whether there will be a requirement or production of energy. D) energy stored in each compound.
Omnivorous animals consume both plant and animal tissue
a. True b. False
Four of the following are modern apes. Which is not a modern ape?
a. gibbon b. new world monkey c. chimpanzee d. gorilla e. orangutan
Systemic lupus erythematosus (SLE or lupus) is distinct from other autoimmune disorders because
A. it is also a hypersensitivity disorder. B. it involves an antibody response. C. multiple organs and tissues are affected. D. it may be triggered by an infection. E. there is a genetic predisposition.