Asked by Teresa Irlbeck on Jul 08, 2024

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Which neurotransmitter opens ligand-gated sodium channels?

A) GABA
B) Cortisol
C) Ecdysone
D) Acetylcholine
E) Brassinosteroid

Ligand-Gated

Referring to ion channels that open in response to the binding of a chemical messenger (ligand), such as a neurotransmitter.

Acetylcholine

A neurotransmitter involved in many functions including muscle movement, heart rate, and the modulation of brain activity.

GABA

Gamma-Aminobutyric Acid, an inhibitory neurotransmitter in the central nervous system that plays a key role in reducing neuronal excitability throughout the nervous system.

  • Apprehend the involvement of different cell types and molecules in the reception, signal transduction, and response stages of signaling within cells.
  • Recognize the various types of neurotransmitters and their roles in cell signaling.
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MO
Marianne Osei-AduJul 14, 2024
Final Answer :
D
Explanation :
Acetylcholine is a neurotransmitter that can open ligand-gated sodium channels, particularly at the neuromuscular junction, leading to muscle contraction.