25. The precursor for the neurotransmitters L-DOPA, Dopamine, Norepinephrine and Epinephrine is: T + a) histidine' + b) tryptophan¶ + c) trvosine T + d) adenosine triphosphate T

Human Anatomy & Physiology (11th Edition)
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Chapter1: The Human Body: An Orientation
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please answer 25,26

25. The precursor for the neurotransmitters L-DOPA, Dopamine, Norepinephrine and Epinephrine ·
is:1
+ a) histidineT
+ b) tryptophanT
+ c) tryosineT
+ d) adenosine triphosphate
26. Neuropeptide transmitters that act as natural opiates to reduce pain perception under certain
stressful conditions are called: T
+ a) choline acetyltransferasesT
+ b) endorphins and enkephalins T
+ c) adenylate cyclases
+ d) glutamatesT
Transcribed Image Text:25. The precursor for the neurotransmitters L-DOPA, Dopamine, Norepinephrine and Epinephrine · is:1 + a) histidineT + b) tryptophanT + c) tryosineT + d) adenosine triphosphate 26. Neuropeptide transmitters that act as natural opiates to reduce pain perception under certain stressful conditions are called: T + a) choline acetyltransferasesT + b) endorphins and enkephalins T + c) adenylate cyclases + d) glutamatesT
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