<span>Out of the following given choices;</span>
a. the major excitatory
neurotransmitters in the CNS.
b. known to be solely inhibitory in the brain.
c. the predominant neuromodulators in the spinal cord.
d. the most common neurotransmitters in the CN
The answer is D. This
is because the amino acids are the main synaptic
neurotransmitters in the brain neurons. Glutamate is released by all
brain neurons and has an excitatory effect. GABA and glycine have the opposite effect
(inhibitory)
<span> In </span>animal cells centrioles<span> organise the pericentriolar material to produce microtubules including mitotic spindle fibres.</span><span />
The cell because they are moving from high to low concentration