In addition to glucose, brain cells also need the amino acid phenylalanine to move from the blood and across the blood brain barrier. Brains cells use phenylalanine to produce the neurotransmitter dopamine. Phenylalanine is transported from the blood and into the endothelial cells of the blood brain barrier through the transport protein LAT1, which uses energy to facilitate the movement. In a healthy brain, where is there a higher concentration of phenylalanine? a) In the blood b) In the endothelial cells of the blood brain barrier
In addition to glucose, brain cells also need the amino acid phenylalanine to move from the blood and across the blood brain barrier. Brains cells use phenylalanine to produce the neurotransmitter dopamine. Phenylalanine is transported from the blood and into the endothelial cells of the blood brain barrier through the transport protein LAT1, which uses energy to facilitate the movement. In a healthy brain, where is there a higher concentration of phenylalanine? a) In the blood b) In the endothelial cells of the blood brain barrier
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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In addition to glucose, brain cells also need the amino acid phenylalanine to move from the blood and across the blood brain barrier. Brains cells use phenylalanine to produce the neurotransmitter dopamine. Phenylalanine is transported from the blood and into the endothelial cells of the blood brain barrier through the transport protein LAT1, which uses energy to facilitate the movement. In a healthy brain, where is there a higher concentration of phenylalanine?
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a) In the blood |
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b) In the endothelial cells of the blood brain barrier |
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