Acetylcholine binds to its receptor in the sarcolemma and triggers a. the opening of voltage-gated calcium channels b. the opening of ligand-gated cation channels c. the opening of calcium-release channels d. the opening of ligand-gated anion channels

Acetylcholine binds to its receptor in the sarcolemma and triggers B. The opening of ligand-gated cation channels.

Acetylcholine refers to an organic chemical that functions in the brain. It's typically a chemical message that's released by the nerve cells in order to send signals to the other cells like the muscles cells, neurons, etc.

When acetylcholine binds to its receptor in the sarcolemma, this lead to the triggering of the opening of ligand-gated cation channels. These is vital for controlling synaptic transmission between the neurons.

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b. The opening of ligand-gated cation channels

Step-by-step explanation:

When an acetylcholine ligand molecule binds to its receptor in the sarcolemma, it triggers a conformational change.

A "gate" in the receptor opens and allows Na⁺ ions to pass through a channel into the muscle fibre.

Hence the term ligand-gated cation channel.

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answer; 4 electrons;