Which Compound Would Prevent the Release of Neurotransmitters from Stimulated

question 104

Multiple Choice

Which compound would prevent the release of neurotransmitters from stimulated neurons?

• A) Bungarotoxin because it disables t-SNAREs.
• B) Tetanus toxin because it cuts up SNARE proteins.
• C) Synaptotagmin because it senses Ca²⁺.
• D) Tetrodotoxin because it blocks exocytosis.

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Definitions:

Autorhythmic

Spontaneous and periodic—for example, in smooth muscle, spontaneous (without nervous or hormonal stimulation) and periodic contractions.

Cardiac Muscle

A type of involuntary striated muscle found exclusively in the heart, responsible for pumping blood throughout the body.

Skeletal Muscle

A type of striated muscle tissue that is attached to bones, enabling voluntary movement of the body through contraction and relaxation.

Smooth Muscle

A type of muscle tissue found in the walls of hollow organs (such as intestines and blood vessels) that contracts involuntarily, controlled by the autonomic nervous system.