Nutrition Final Exam

Chemicals that are released at the end of a nerve cell when a nerve impulse arrives there. They diffuse across the gap to the next cell and alter the membrane of that second cell to either inhibit or excite it

a neurotransmitter important in sleep regulation, appetite control, and sensory perception, among other roles. Also synthesized in the body from the amino acid tryptophan with the help of vitamin B6

removal of the amino group from a compound such as an amino acid

produced during the deamination of amino acids

an organic acid that contains a carbonyl group

the transfer of an amino group from one amino group from one amino acid to a aketo acid, producing a new nonessential amino acid and a new keto acid

the principal nitrogen-excretion product of protein metabolism. Two ammonia fragments are combine with carbon dioxide to form urea.