1
Q
An obligate glucose user
A
Brain
2
Q
In prolonged starvation, what does the brain use for energy?
A
Both ketone acids and amino acids
3
Q
Why does the citric acid cycle take place greatly in the brain?
A
Lots of mitochondria in the brain
4
Q
Major pathways in the brain
A
Glycolysis, citric acid cycle, amino
acid metabolism, a neurotransmitter
synthesis
5
Q
Main substrates in the brain
A
Glucose, amino acids, ketone bodies
in prolonged starvation
6
Q
Major products exported in the brain
A
Lactate, end products of
neurotransmitter metabolism
7
Q
Specialist enzymes in the brain
A
Those for synthesis and catabolism of
neurotransmitters
