Acetylcholine Is Released from the Presynaptic Terminal by the Process

question 83

Multiple Choice

Acetylcholine is released from the presynaptic terminal by the process of

• A) exocytosis.
• B) diffusion.
• C) phagocytosis.
• D) active transport.
• E) endocytosis.

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Definitions:

Plasma Membrane

A selectively permeable lipid bilayer that encloses the cytoplasm of a cell, protecting it from the external environment.

Resting Membrane Potential

The voltage difference across the cell membrane when the cell is in an unstimulated, resting state, crucial for the function of nerve and muscle cells.

Sodium Ion

A positively charged ion (Na+) essential for various physiological functions, including nerve impulse transmission and fluid balance in the body.

Calcium Ions

Positively charged calcium atoms (Ca2+) that play vital roles in various biological processes, including muscle contraction, neurotransmission, and blood clotting.