Biology · Human Physiology
Catecholamines (i.e., dopamine, norepinephrine, and epinephrine) are important adrenal medullary hormones which play a role in the response to emergency situations. The following statements are made with reference to this: A. Catecholamines can easily cross the blood-brain barrier. B. Dopa decarboxylase (DD) is a soluble enzyme that converts L-dopa to dopamine. C. Dopamine β-hydroxylase (DBH) is a copper-containing enzyme associated with synaptic vesicles that converts dopamine to norepinephrine. D. Phenylethanolamine-N-methyltransferase (PNMT) is a soluble enzyme that is induced by glucocorticoids. Which one of the following has the correct combination of statements?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1A and C
- 2C and D
- 3B and D✓
- 4A and B
Correct answer
B and D
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