Which is one of the most abundant excitatory neurotransmitters in the CNS?
A. Endorphin
B. Dopamine
C. Gamma-aminobutyric acid (GABA)
D. Glutamate
E. Norepinephrine
Answer: D
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The molecule that an enzyme affects is its _________
Fill in the blank(s) with correct word
The Na+ and K+ channels that open and close during an action potential are voltage-gated channels
Indicate whether the statement is true or false
____________________, a neurotransmitter unique to pain fibers, is released from afferent pain terminals
Fill in the blank(s) with correct word
The cell is the basic unit of life. All cellular structures exhibit special functions. Match the structure with its function. What is the function of "E"?
A. major site of ATP synthesis when oxygen is available B. contains digestive enzymes C. directs cellular activities, contains DNA D. site of protein synthesis E. outer boundary of cell, controls entry and exit of substances