Over 50 Different Neurotransmitters Have Been Identified, but the Best

question 24

Multiple Choice

Over 50 different neurotransmitters have been identified, but the best known is ________.

• A) norepinephrine
• B) epinephrine
• C) glutamate
• D) acetylcholine
• E) GABA

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Definitions:

ΔH°

The standard enthalpy change of a reaction, indicating the overall heat absorbed or released under standard conditions.

Bond Dissociation Energies

The energy required to break a specific chemical bond in a molecule, indicating the strength of the bond.

Initiation Step

The first stage in a chemical reaction where reactants begin to form intermediates.

Free Radical Chlorination

A chemical reaction involving the substitution of hydrogen atoms in alkanes with chlorine atoms through the action of free radicals, typically used in organic synthesis.